Volcano Hazards Program

Geologic maps tell the history of a volcano's formation

A geologic map of a volcano delineates the type, location, and age of rock deposits found on the ground around a volcano. Geologists conduct fieldwork to locate and sample units of rocks then preform laboratory analyses to determine the age of deposits. The rock deposits are evidence of the range of hazardous phenomena that a particular volcano is capable of producing. The ages indicate the frequency of volcanic activity and length of pauses (recurrence intervals) between events. Because the past behavior of a volcano is a good guide to its expected future behavior, geologic maps are the foundation of long-term hazard assessments.

Alaska

Akutan
 

Richter, D. H., Waythomas, C. F., McGimsey, R. G. & Stelling, P. L. (1998). Geologic map of Akutan Island, Alaska. U.S. Geological Survey Open-File Report , 98-0135

Augustine
 

Waitt, R. & Beget, J. E. (2009). Volcanic Processes and Geology of Augustine Volcano, Alaska. U.S. Geological Survey Professional Paper , 1762, 90 p.

Gareloi
 

Coombs, M. L., McGimsey, R. G. & Browne, B. L. (2012). Geologic Map of Mount Gareloi, Gareloi Island, Alaska. U.S. Geological Survey Scientific Investigations Map , 3145, 22p.

Great Sitkin
 

Waythomas, C. F., Miller, T. P. & Nye, C. J. (2003). Preliminary geologic map of Great Sitkin Volcano, Alaska. U.S. Geological Survey Open-File Report , 03-0036, 26p. http://www.avo.alaska.edu/downloads/reference.php?citid=3495

Kanaga
 

Miller, T. P., Waythomas, C. F. & Nye, C. J. (2003). Preliminary geologic map of Kanaga Volcano, Alaska.U.S. Geological Survey Open-File Report , 03-0113

Katmai
 

Hildreth, W. & Fierstein, J. (2003). Geologic Map of the Katmai Volcanic Cluster, Katmai National Park, Alaska. U.S. Geological Survey Geologic Investigations Series , I-2778, 45p.

 

Robinson, J. E., Ramsey, D. W., Felger, T. J., Hildreth, W. & Fierstein, J. (2003). Database for the Geologic Map of the Katmai Cluster, Katmai National Park, Alaska. U.S. Geological Survey Geologic Investigations Series , I-2778

Makushin
 

McConnell, V. S., Beget, J. E., Roach, A. L., Bean, K. W. & Nye, C. J. (1998). Geologic map of the Makushin Volcanic Field, Unalaska Island, Alaska. Report of Investigations , 97-20, 2 sheets.

Ugashik-Peulik
 

Miller, T. P. (2004). Geology of the Ugashik-Mount Peulik Volcanic Center, Alaska. U.S. Geological Survey Open-File Report , 2004-1009, 26p.

 

Arizona

San Francisco Volcanic Field
 

Newhall, C. G., Ulrich, G. E. & Wolfe, E. W. (1987). Geologic map of the southwest part of the San Francisco volcanic field, north-central Arizona. U.S. Geological Survey Miscellaneous Field Studies Map , 1958 http://ngmdb.usgs.gov/Prodesc/proddesc_5528.htm

 

Ulrich, G. E. & Bailey, N. G. (1987). Geologic map of the SP Mountain part of the San Francisco Volcanic Field, north-central Arizona. U.S. Geological Survey Miscellaneous Field Studies Map , 1956 http://ngmdb.usgs.gov/Prodesc/proddesc_5526.htm

 

Wolfe, E. W., Ulrich, G. E., Holm, R. F., Moore, R. B. & Newhall, C. G. (1987). Geologic map of the central part of the San Francisco Volcanic Field, north-central Arizona. U.S. Geological Survey Miscellaneous Field Studies Map , 1959 http://ngmdb.usgs.gov/Prodesc/proddesc_13110.htm

 

Wolfe, E. W., Ulrich, G. E. & Newhall, C. G. (1987). Geologic map of the northwest part of the San Francisco Volcanic Field, north-central Arizona. U.S. Geological Survey Miscellaneous Field Studies Map , 1957 http://ngmdb.usgs.gov/Prodesc/proddesc_5527.htm

 

Luedke, R. G. & Smith, R. L. (1978). Map showing distribution, composition, and age of late Cenozoic volcanic centers in Arizona and New Mexico. U.S. Geological Survey Miscellaneous Investigations Map , 1091-A

Uinkaret Volcanic Field
 

Billingsley, G. H., Hamblin, W. K., Wellmeyer, J. L. & Dudash, S. L. (2001). Geologic Map of Part of the Uinkaret Volcanic Field, Mohave County, Northwestern Arizona. U.S. Geological Survey Miscellaneous Field Studies Map , 2368

 

Luedke, R. G. & Smith, R. L. (1978). Map showing distribution, composition, and age of late Cenozoic volcanic centers in Arizona and New Mexico. U.S. Geological Survey Miscellaneous Investigations Map , 1091-A

 

California

Clear Lake Volcanic Field
 

Hearn Jr., B. C., Donnelly-Nolan, J. M. & Goff, F. E. (1995). Geologic map and structure sections of the Clear Lake Volcanics, Northern California. U.S. Geological Survey Miscellaneous Investigations Map , 2362, 1 map, 1 data sheet.

Coso Volcanic Field
 

Duffield, W. A. & Bacon, C. R. (1981). Geologic map of the Coso volcanic field and adjacent areas, Inyo County, California. U.S. Geological Survey Miscellaneous Investigations Map , 1200, 1 map.

Lassen Volcanic Center
 

Clynne, M. A. & Muffler, L. P. (2010). Geologic map of Lassen Volcanic National Park and vicinity, California.U.S. Geological Survey Scientific Investigations Map , 2899, 95 p.

 

Christiansen, R. L., Clynne, M. A. & Muffler, L. P. (2002). Geologic Map of the Lassen Peak, Chaos Crags, and Upper Hat Creek Area, California. U.S. Geological Survey Geologic Investigations Series , 2723, 18 p.

Lavic Lake Volcanic Field
 

Dibblee, T. W. (1966). Geologic map of the Lavic quadrangle, San Bernardino County, California. U.S. Geological Survey Miscellaneous Investigations Map , 472 http://ngmdb.usgs.gov/Prodesc/proddesc_103.htm

 

Wise, W. S. (1966). Geologic map of the Pisgah and Sunshine cone lava fields, California. NASA Technical Letter , 11

Long Valley Caldera
 

Hildreth, W. & Fierstein, J. (2016). Eruptive history of Mammoth Mountain and its mafic periphery, California. U.S. Geological Survey Professional Paper , 1812, 138 p.

 

Bailey, R. A. (1989). Geologic map of Long Valley caldera, Mono-Inyo Craters volcanic chain, and vicinity, Mono County, California. U.S. Geological Survey Miscellaneous Investigations Map , 1933, 11 p.

Mammoth Mountain
 

Hildreth, W. & Fierstein, J. (2016). Eruptive history of Mammoth Mountain and its mafic periphery, California. U.S. Geological Survey Professional Paper , 1812, 138 p.

 

Bailey, R. A. (1989). Geologic map of Long Valley caldera, Mono-Inyo Craters volcanic chain, and vicinity, Mono County, California. U.S. Geological Survey Miscellaneous Investigations Map , 1933, 11 p.

Medicine Lake
 

Geologic map of Medicine Lake Volcano, Northern California. U.S. Geological Survey Scientific Investigations Map (2010). U.S. Geological Survey. , 2927, 48 p.

 

Donnelly-Nolan, J. M. & Champion, D. E. (1987). Geologic map of Lava Beds National Monument, Northern California. U.S. Geological Survey Scientific Investigations Map , 1804

Mono-Inyo Chain
 

Bailey, R. A. (1989). Geologic map of Long Valley caldera, Mono-Inyo Craters volcanic chain, and vicinity, Mono County, California. U.S. Geological Survey Miscellaneous Investigations Map , 1933, 11 p.

Silver Lake Volcanic Field
 

Macdonald, G. A. & Lydon, P. A. (1972). Geologic map of the Whitmore quadrangle, California. U.S. Geological Survey Geologic Quadrangle , 993 http://ngmdb.usgs.gov/Prodesc/proddesc_378.htm

Tumble Buttes
 

Clynne, M. A. & Muffler, L. P. (2010). Geologic map of Lassen Volcanic National Park and vicinity, California.U.S. Geological Survey Scientific Investigations Map , 2899, 95 p.

 

Macdonald, G. A. (1963). Geology of the Manzanita Lake quadrangle, California. U.S. Geological Survey Geologic Quadrangle , 248 http://ngmdb.usgs.gov/Prodesc/proddesc_375.htm

 

Hawaii

Haleakala
 

Sherrod, D. R., Sinton, J. M., Watkins, S. E. & Brunt, K. M. (2007). Geologic Map of the State of Hawai'i.U.S. Geological Survey Open-File Report , 2007-1089

 

Eakins, B. W., Robinson, J. E., Kanamatsu, T., Naka, J., Smith, J. R., Takahashi, E. & Clague, D. A. (2003). Hawaii's Volcanoes Revealed. U.S. Geological Survey Geological Investigations Series Map , I-2809, 1 plate.

Hualalai
 

Sherrod, D. R., Sinton, J. M., Watkins, S. E. & Brunt, K. M. (2007). Geologic Map of the State of Hawai'i.U.S. Geological Survey Open-File Report , 2007-1089

 

Eakins, B. W., Robinson, J. E., Kanamatsu, T., Naka, J., Smith, J. R., Takahashi, E. & Clague, D. A. (2003). Hawaii's Volcanoes Revealed. U.S. Geological Survey Geological Investigations Series Map , I-2809, 1 plate.

Kilauea
 

Sherrod, D. R., Sinton, J. M., Watkins, S. E. & Brunt, K. M. (2007). Geologic Map of the State of Hawai'i.U.S. Geological Survey Open-File Report , 2007-1089

 

Eakins, B. W., Robinson, J. E., Kanamatsu, T., Naka, J., Smith, J. R., Takahashi, E. & Clague, D. A. (2003). Hawaii's Volcanoes Revealed. U.S. Geological Survey Geological Investigations Series Map , I-2809, 1 plate.

 

Neal, C. A. & Lockwood, J. P. (2003). Geologic Map of the Summit Region of Kīlauea Volcano, Hawaii. U.S. Geological Survey Geologic Investigations Series , I-2759

 

Heliker, C. C., Ulrich, G. E., Margriter, S. C. & Hoffman, J. P. (2001). Maps Showing the Development of the Pu‘u ‘Ō‘ō - Kupaianaha Flow Field, June 1984-February 1987, Kīlauea Volcano, Hawai‘i. U.S. Geological Survey Geologic Investigations Series , I-2685, 4 p.

 

Trusdell, F. A., Wolfe, E. W. & Morris, J. (1996). Digital Database of the Geologic Map of the Island of Hawai'i. U.S. Geological Survey Data Series , 144

Loihi
 

Eakins, B. W., Robinson, J. E., Kanamatsu, T., Naka, J., Smith, J. R., Takahashi, E. & Clague, D. A. (2003). Hawaii's Volcanoes Revealed. U.S. Geological Survey Geological Investigations Series Map , I-2809, 1 plate.

Mauna Kea
 

Sherrod, D. R., Sinton, J. M., Watkins, S. E. & Brunt, K. M. (2007). Geologic Map of the State of Hawai'i.U.S. Geological Survey Open-File Report , 2007-1089

 

Eakins, B. W., Robinson, J. E., Kanamatsu, T., Naka, J., Smith, J. R., Takahashi, E. & Clague, D. A. (2003). Hawaii's Volcanoes Revealed. U.S. Geological Survey Geological Investigations Series Map , I-2809, 1 plate.

Mauna Loa
 

Trusdell, F. A. & Lockwood, J. P. (2017). Geologic map of the northeast flank of Mauna Loa volcano, Island of Hawai‘i, Hawaii. U.S. Geological Survey Scientific Investigations Map , 2932-A, pamphlet 25 p., 2 sheets. doi:10.3133/sim2932A

 

Trusdell, F. A. & Zoeller, M. H. (2017). Lava inundation zone maps for Mauna Loa, Island of Hawai‘i, Hawaii.U.S. Geological Survey Scientific Investigations Report , 3387, 12 p., 10 sheets. doi:10.3133/sim3387 https://pubs.er.usgs.gov/publication/sim3387

 

Sherrod, D. R., Sinton, J. M., Watkins, S. E. & Brunt, K. M. (2007). Geologic Map of the State of Hawai'i.U.S. Geological Survey Open-File Report , 2007-1089

 

Eakins, B. W., Robinson, J. E., Kanamatsu, T., Naka, J., Smith, J. R., Takahashi, E. & Clague, D. A. (2003). Hawaii's Volcanoes Revealed. U.S. Geological Survey Geological Investigations Series Map , I-2809, 1 plate.

 

Idaho

Black Butte Crater Lava Field
 

Othberg, K. L., Kauffman, J. D., Gillerman, V. S. & Garwood, D. L. (2012). Geologic Map of the Twin Falls 30 X 60 Minute Quadrangle, Idaho. Idaho Geological Survey Geological Map , GM-49

 

Othberg, K. L. & Kauffman, J. D. (2007). Geologic map of the Shoshone Ice Cave quadrangle Blaine, Lincoln, and Camas Counties, Idaho. Idaho Geological Survey Digital Web Map , DWM-84 http://www.idahogeology.org/PDF/Digital_Data_(D)/Digital_Web_Maps_(DWM)/shoshone_ice_cave_dwm-84-m.pdf

Craters of the Moon Volcanic Field
 

Kuntz, M. A., Skipp, B., Champion, D. E., Gans, P. B., Van Sistine, D. P. & Snyders, S. R. (2007). Geologic Map of the Craters of the Moon 30’ x 60’ Quadrangle, Idaho. U.S. Geological Survey Scientific Investigations Map , 2969, 64 p.

 

Kuntz, M. A., Champion, D. E., Lefebvre, R. H. & Covington, H. R. (1988). Geologic map of the Craters of the Moon, Kings Bowl, and Wapi Lava Fields, and the Great Rift Volcanic Rift Zone, south-central Idaho. U.S. Geological Survey Miscellaneous Investigations Map , IMAP: 1632

Hell's Half Acre Lava Field
 

Kuntz, M. A., Scott, W. E., Skipp, B., Hait, M. H., Embree, G. F., Hoggan, R. D. & Williams, E. J. (1979). Geologic map of the Lava Ridge-Hells Half Acre area, eastern Snake River plain, Idaho. U.S. Geological Survey Open-File Report , 79-669

 

LaPoint, P. I. (1977). Preliminary Photogeologic Map of the Eastern Snake River Plain, Idaho. U.S. Geological Survey Miscellaneous Field Studies Map , MF-850

Wapi Lava Field
 

Kuntz, M. A., Champion, D. E., Lefebvre, R. H. & Covington, H. R. (1988). Geologic map of the Craters of the Moon, Kings Bowl, and Wapi Lava Fields, and the Great Rift Volcanic Rift Zone, south-central Idaho. U.S. Geological Survey Miscellaneous Investigations Map , IMAP: 1632

 

New Mexico

Carrizozo Lava Flow
 

Luedke, R. G. & Smith, R. L. (1978). Map showing distribution, composition, and age of late Cenozoic volcanic centers in Arizona and New Mexico. U.S. Geological Survey Miscellaneous Investigations Map , 1091-A

Valles Caldera
 

Goff, F. E., Gardner, J. N., Reneau, S. L., Kelley, S. P., Kempter, K. A. & Lawrence, J. R. (2011). Geologic map of the Valles Caldera. New Mexico Bureau of Geology and Mineral Resources Geologic Map , GM-79 doi:ISBN: 9781883905293

 

Luedke, R. G. & Smith, R. L. (1978). Map showing distribution, composition, and age of late Cenozoic volcanic centers in Arizona and New Mexico. U.S. Geological Survey Miscellaneous Investigations Map , 1091-A

Zuni-Bandera Volcanic Field
 

Maxwell, C. H. (1986). Geologic map of El Malpais lava field and surrounding areas, Cibola County, New Mexico. U.S. Geological Survey Miscellaneous Investigations Map , 1595 http://ngmdb.usgs.gov/Prodesc/proddesc_9332.htm

 

Luedke, R. G. & Smith, R. L. (1978). Map showing distribution, composition, and age of late Cenozoic volcanic centers in Arizona and New Mexico. U.S. Geological Survey Miscellaneous Investigations Map , 1091-A

 

Northern Mariana Islands

Alamagan
 

Moore, R. B. & Trusdell, F. A. (1993). Geologic map of Alamagan Volcano, northern Mariana Islands. U.S. Geological Survey Numbered Series , 2408 http://pubs.er.usgs.gov/publication/i2408

Pagan
 

Trusdell, F. A., Moore, R. B. & Sako, M. K. (2006). Preliminary Geologic Map of Mount Pagan Volcano, Pagan Island, Commonwealth of the Northern Mariana Islands. U.S. Geological Survey Open-File Report , 2006-1386, 36p.

 

Oregon

Belknap
 

Nimz, K., Ramsey, D. W., Sherrod, D. R. & Smith, J. G. (2008). Database for the Geologic Map of Upper Eocene to Holocene Volcanic and Related Rocks of the Cascade Range, Oregon. U.S. Geological Survey Data Series , 213

 

Sherrod, D. R., Taylor, E. M., Ferns, M. L., Scott, W. E., Conrey, R. M. & Smith, G. A. (2004). Geologic Map of the Bend 30- X 60-Minute Quadrangle, Central Oregon. U.S. Geological Survey Geologic Investigations Series , I-2683

 

Sherrod, D. R. & Smith, J. G. (2000). Geologic Map of Upper Eocene to Holocene Volcanic and Related Rocks of the Cascade Range, Oregon. U.S. Geological Survey Scientific Investigations Map , 2569, 17 p., 2 sheets.

Blue Lake Crater
 

Nimz, K., Ramsey, D. W., Sherrod, D. R. & Smith, J. G. (2008). Database for the Geologic Map of Upper Eocene to Holocene Volcanic and Related Rocks of the Cascade Range, Oregon. U.S. Geological Survey Data Series , 213

 

Sherrod, D. R., Taylor, E. M., Ferns, M. L., Scott, W. E., Conrey, R. M. & Smith, G. A. (2004). Geologic Map of the Bend 30- X 60-Minute Quadrangle, Central Oregon. U.S. Geological Survey Geologic Investigations Series , I-2683

 

Sherrod, D. R. & Smith, J. G. (2000). Geologic Map of Upper Eocene to Holocene Volcanic and Related Rocks of the Cascade Range, Oregon. U.S. Geological Survey Scientific Investigations Map , 2569, 17 p., 2 sheets.

Cinnamon Butte
 

Nimz, K., Ramsey, D. W., Sherrod, D. R. & Smith, J. G. (2008). Database for the Geologic Map of Upper Eocene to Holocene Volcanic and Related Rocks of the Cascade Range, Oregon. U.S. Geological Survey Data Series , 213

 

Sherrod, D. R. & Smith, J. G. (2000). Geologic Map of Upper Eocene to Holocene Volcanic and Related Rocks of the Cascade Range, Oregon. U.S. Geological Survey Scientific Investigations Map , 2569, 17 p., 2 sheets.

Crater Lake
 

Nimz, K., Ramsey, D. W., Sherrod, D. R. & Smith, J. G. (2008). Database for the Geologic Map of Upper Eocene to Holocene Volcanic and Related Rocks of the Cascade Range, Oregon. U.S. Geological Survey Data Series , 213

 

Bacon, C. R. (2008). Geologic Map of Mount Mazama and Crater Lake Caldera, Oregon. U.S. Geological Survey Scientific Investigations Map , 2832, 49 p.

 

Sherrod, D. R. & Smith, J. G. (2000). Geologic Map of Upper Eocene to Holocene Volcanic and Related Rocks of the Cascade Range, Oregon. U.S. Geological Survey Scientific Investigations Map , 2569, 17 p., 2 sheets.

Davis Lake Volcanic Field
 

Nimz, K., Ramsey, D. W., Sherrod, D. R. & Smith, J. G. (2008). Database for the Geologic Map of Upper Eocene to Holocene Volcanic and Related Rocks of the Cascade Range, Oregon. U.S. Geological Survey Data Series , 213

 

Sherrod, D. R. & Smith, J. G. (2000). Geologic Map of Upper Eocene to Holocene Volcanic and Related Rocks of the Cascade Range, Oregon. U.S. Geological Survey Scientific Investigations Map , 2569, 17 p., 2 sheets.

 

MacLeod, N. S. & Sherrod, D. R. (1992). Reconnaissance geologic map of the west half of the Crescent 1 degree by 2 degrees Quadrangle, central Oregon. U.S. Geological Survey Miscellaneous Investigations Map , 2215 http://ngmdb.usgs.gov/Prodesc/proddesc_10194.htm

Devils Garden Lava Field
 

Nimz, K., Ramsey, D. W., Sherrod, D. R. & Smith, J. G. (2008). Database for the Geologic Map of Upper Eocene to Holocene Volcanic and Related Rocks of the Cascade Range, Oregon. U.S. Geological Survey Data Series , 213

 

Sherrod, D. R. & Smith, J. G. (2000). Geologic Map of Upper Eocene to Holocene Volcanic and Related Rocks of the Cascade Range, Oregon. U.S. Geological Survey Scientific Investigations Map , 2569, 17 p., 2 sheets.

 

Walker, G. W., Peterson, N. V. & Greene, R. C. (1967). Reconnaissance geologic map of the east half of the Crescent quadrangle, Lake, Deschutes, and Crook Counties, Oregon. U.S. Geological Survey Miscellaneous Investigations Map , 493 http://ngmdb.usgs.gov/Prodesc/proddesc_1708.htm

Diamond Craters Volcanic Field
 

Nimz, K., Ramsey, D. W., Sherrod, D. R. & Smith, J. G. (2008). Database for the Geologic Map of Upper Eocene to Holocene Volcanic and Related Rocks of the Cascade Range, Oregon. U.S. Geological Survey Data Series , 213

 

Sherrod, D. R. & Smith, J. G. (2000). Geologic Map of Upper Eocene to Holocene Volcanic and Related Rocks of the Cascade Range, Oregon. U.S. Geological Survey Scientific Investigations Map , 2569, 17 p., 2 sheets.

Four Craters Lava Field
 

Nimz, K., Ramsey, D. W., Sherrod, D. R. & Smith, J. G. (2008). Database for the Geologic Map of Upper Eocene to Holocene Volcanic and Related Rocks of the Cascade Range, Oregon. U.S. Geological Survey Data Series , 213

 

Sherrod, D. R. & Smith, J. G. (2000). Geologic Map of Upper Eocene to Holocene Volcanic and Related Rocks of the Cascade Range, Oregon. U.S. Geological Survey Scientific Investigations Map , 2569, 17 p., 2 sheets.

Jordan Craters Volcanic Field
 

Nimz, K., Ramsey, D. W., Sherrod, D. R. & Smith, J. G. (2008). Database for the Geologic Map of Upper Eocene to Holocene Volcanic and Related Rocks of the Cascade Range, Oregon. U.S. Geological Survey Data Series , 213

 

Sherrod, D. R. & Smith, J. G. (2000). Geologic Map of Upper Eocene to Holocene Volcanic and Related Rocks of the Cascade Range, Oregon. U.S. Geological Survey Scientific Investigations Map , 2569, 17 p., 2 sheets.

Lava Mountain Lava Field
 

Nimz, K., Ramsey, D. W., Sherrod, D. R. & Smith, J. G. (2008). Database for the Geologic Map of Upper Eocene to Holocene Volcanic and Related Rocks of the Cascade Range, Oregon. U.S. Geological Survey Data Series , 213

 

Sherrod, D. R. & Smith, J. G. (2000). Geologic Map of Upper Eocene to Holocene Volcanic and Related Rocks of the Cascade Range, Oregon. U.S. Geological Survey Scientific Investigations Map , 2569, 17 p., 2 sheets.

Mount Bachelor
 

Nimz, K., Ramsey, D. W., Sherrod, D. R. & Smith, J. G. (2008). Database for the Geologic Map of Upper Eocene to Holocene Volcanic and Related Rocks of the Cascade Range, Oregon. U.S. Geological Survey Data Series , 213

 

Sherrod, D. R. & Smith, J. G. (2000). Geologic Map of Upper Eocene to Holocene Volcanic and Related Rocks of the Cascade Range, Oregon. U.S. Geological Survey Scientific Investigations Map , 2569, 17 p., 2 sheets.

 

Scott, W. E. & Gardner, C. (1992). Geologic map of the Mount Bachelor volcanic chain and surrounding area, Cascade Range, Oregon. U.S. Geological Survey Miscellaneous Investigations Map , I-1967

Mount Hood
 

Nimz, K., Ramsey, D. W., Sherrod, D. R. & Smith, J. G. (2008). Database for the Geologic Map of Upper Eocene to Holocene Volcanic and Related Rocks of the Cascade Range, Oregon. U.S. Geological Survey Data Series , 213

 

Sherrod, D. R. & Smith, J. G. (2000). Geologic Map of Upper Eocene to Holocene Volcanic and Related Rocks of the Cascade Range, Oregon. U.S. Geological Survey Scientific Investigations Map , 2569, 17 p., 2 sheets.

 

Sherrod, D. R. & Scott, W. E. (1995). Preliminary Geologic Map of the Mount Hood 30- by 60-minute Quadrangle, Northern Cascade Range, Oregon. U.S. Geological Survey Open-File Report , 95-219, 35 p.

Mount Jefferson
 

Nimz, K., Ramsey, D. W., Sherrod, D. R. & Smith, J. G. (2008). Database for the Geologic Map of Upper Eocene to Holocene Volcanic and Related Rocks of the Cascade Range, Oregon. U.S. Geological Survey Data Series , 213

 

Sherrod, D. R. & Smith, J. G. (2000). Geologic Map of Upper Eocene to Holocene Volcanic and Related Rocks of the Cascade Range, Oregon. U.S. Geological Survey Scientific Investigations Map , 2569, 17 p., 2 sheets.

Newberry
 

Bard, J. A., Ramsey, D. W., MacLeod, N. S., Sherrod, D. R., Chitwood, L. A. & Jensen, R. A. (2013). Database for the Geologic Map of Newberry Volcano, Deschutes, Klamath, and Lake Counties, Oregon. U.S. Geological Survey Miscellaneous Investigations Map , I-2455

 

Nimz, K., Ramsey, D. W., Sherrod, D. R. & Smith, J. G. (2008). Database for the Geologic Map of Upper Eocene to Holocene Volcanic and Related Rocks of the Cascade Range, Oregon. U.S. Geological Survey Data Series , 213

 

Sherrod, D. R., Taylor, E. M., Ferns, M. L., Scott, W. E., Conrey, R. M. & Smith, G. A. (2004). Geologic Map of the Bend 30- X 60-Minute Quadrangle, Central Oregon. U.S. Geological Survey Geologic Investigations Series , I-2683

 

Sherrod, D. R. & Smith, J. G. (2000). Geologic Map of Upper Eocene to Holocene Volcanic and Related Rocks of the Cascade Range, Oregon. U.S. Geological Survey Scientific Investigations Map , 2569, 17 p., 2 sheets.

 

MacLeod, N. S., Sherrod, D. R., Chitwood, L. A. & Jensen, R. A. (1995). Geologic Map of Newberry Volcano, Deschutes, Klamath, and Lake Counties, Oregon. U.S. Geological Survey Miscellaneous Investigations Map , I-2455, 2 maps.

Sand Mountain Volcanic Field
 

Nimz, K., Ramsey, D. W., Sherrod, D. R. & Smith, J. G. (2008). Database for the Geologic Map of Upper Eocene to Holocene Volcanic and Related Rocks of the Cascade Range, Oregon. U.S. Geological Survey Data Series , 213

 

Sherrod, D. R., Taylor, E. M., Ferns, M. L., Scott, W. E., Conrey, R. M. & Smith, G. A. (2004). Geologic Map of the Bend 30- X 60-Minute Quadrangle, Central Oregon. U.S. Geological Survey Geologic Investigations Series , I-2683

 

Sherrod, D. R. & Smith, J. G. (2000). Geologic Map of Upper Eocene to Holocene Volcanic and Related Rocks of the Cascade Range, Oregon. U.S. Geological Survey Scientific Investigations Map , 2569, 17 p., 2 sheets.

Three Sisters
 

Hildreth, W., Fierstein, J. & Calvert, A. T. (2012). Geologic Map of Three Sisters Volcanic Cluster, Cascade Range, Oregon. U.S. Geological Survey Scientific Investigations Map , 3186, phamplet 107 p., 2 sheets.

 

Robinson, J. E., Hildreth, W., Fierstein, J. & Calvert, A. T. (2012). Database for the Geologic Map of Three Sisters Volcanic Cluster, Cascade Range, Oregon. Hildreth, W., Fierstein, J. & Calvert, A. T. (Eds.) ,U.S. Geological Survey Scientific Investigations Map , 3186 http://pubs.usgs.gov/sim/3186/database.html

 

Nimz, K., Ramsey, D. W., Sherrod, D. R. & Smith, J. G. (2008). Database for the Geologic Map of Upper Eocene to Holocene Volcanic and Related Rocks of the Cascade Range, Oregon. U.S. Geological Survey Data Series , 213

 

Sherrod, D. R. & Smith, J. G. (2000). Geologic Map of Upper Eocene to Holocene Volcanic and Related Rocks of the Cascade Range, Oregon. U.S. Geological Survey Scientific Investigations Map , 2569, 17 p., 2 sheets.

 

Utah

Bald Knoll
 

Doelling, H. H. (2008). Geologic map of the Kanab 30' x 60' quadrangle, Kane and Washington Counties, Utah, and Coconino and Mohave Counties, Arizona. Utah Geological Survey Miscellaneous Publication , 08-2DM, 2 p.

Black Rock Desert Volcanic Field
 

Cunningham, C. G., Fitzhugh, D. D., Hintze, L. F., Rowley, P. D., Steven, T. A. & Willis, G. C. (2003). Geologic map of the Richfield 30’ x 60’ quadrangle, southeast Millard County and parts of Beaver, Piute, and Sevier counties, Utah. Utah Department of Natural Resources Geologic Map , Map 195, 2 plates

Markagunt Plateau Volcanic Field
 

Biek, R. F., Rowley, P. D., Anderson, J. J., Maldonado, F., Moore, D. F., Eaton, J. G., Hereford, R. & Matyjasik, B. (2012). Interim geologic map of the Panguitch 30’ x 60’ quadrangle, Garfield, Iron, and Kane Counties, Utah. Utah Department of Natural Resources Open File Report , 599, 128 p.

Santa Clara Volcanic Field
 

Biek, R. F., Rowley, P. D., Hayden, J. M., Hacker, D. B., Willis, G. C., Hintze, L. F., Anderson, R. E. & Brown, K. D. (2009). Geologic map of the St. George and east part of the Clover Mountains 30’ x 60’ quadrangles, Washington and Iron Counties, Utah. Utah Department of Natural Resources Geologic Map , M-242

 

Washington

Glacier Peak
 

Barron, A. D., Ramsey, D. W. & Smith, J. G. (2014). Database for the Geologic Map of Upper Eocene to Holocene Volcanic and Related Rocks in the Cascade Range, Washington. U.S. Geological Survey Data Series , 842

 

Smith, J. G. (1993). Geologic map of Upper Eocene to Holocene volcanic and related rocks in the Cascade Range, Washington. U.S. Geological Survey Miscellaneous Investigations Map , 2005, 19p., 2 sheets.

Indian Heaven Volcanic Field
 

Barron, A. D., Ramsey, D. W. & Smith, J. G. (2014). Database for the Geologic Map of Upper Eocene to Holocene Volcanic and Related Rocks in the Cascade Range, Washington. U.S. Geological Survey Data Series , 842

 

Smith, J. G. (1993). Geologic map of Upper Eocene to Holocene volcanic and related rocks in the Cascade Range, Washington. U.S. Geological Survey Miscellaneous Investigations Map , 2005, 19p., 2 sheets.

Mount Adams
 

Barron, A. D., Ramsey, D. W. & Smith, J. G. (2014). Database for the Geologic Map of Upper Eocene to Holocene Volcanic and Related Rocks in the Cascade Range, Washington. U.S. Geological Survey Data Series , 842

 

Hildreth, W. & Fierstein, J. (1995). Geologic map of the Mount Adams volcanic field, Cascade Range of southern Washington. U.S. Geological Survey Scientific Investigations Map , 2460, 39 pp.

 

Smith, J. G. (1993). Geologic map of Upper Eocene to Holocene volcanic and related rocks in the Cascade Range, Washington. U.S. Geological Survey Miscellaneous Investigations Map , 2005, 19p., 2 sheets.

Mount Baker
 

Barron, A. D., Ramsey, D. W. & Smith, J. G. (2014). Database for the Geologic Map of Upper Eocene to Holocene Volcanic and Related Rocks in the Cascade Range, Washington. U.S. Geological Survey Data Series , 842

 

Tabor, R., Haugerud, R., Hildreth, W. & Brown, E. (2006). Database for the geologic map of the Mount Baker 30- by 60-minute quadrangle, Washington (I-2660). U.S. Geological Survey Data Series , 205, 74.

 

Tabor, R., Haugerud, R., Hildreth, W. & Brown, E. (2003). Geologic map of the Mount Baker 30- by 60 minute quadrangle, Washington. U.S. Geological Survey Data Series , 2660, 70 p.

 

Smith, J. G. (1993). Geologic map of Upper Eocene to Holocene volcanic and related rocks in the Cascade Range, Washington. U.S. Geological Survey Miscellaneous Investigations Map , 2005, 19p., 2 sheets.

Mount Rainier
 

Barron, A. D., Ramsey, D. W. & Smith, J. G. (2014). Database for the Geologic Map of Upper Eocene to Holocene Volcanic and Related Rocks in the Cascade Range, Washington. U.S. Geological Survey Data Series , 842

 

Smith, J. G. (1993). Geologic map of Upper Eocene to Holocene volcanic and related rocks in the Cascade Range, Washington. U.S. Geological Survey Miscellaneous Investigations Map , 2005, 19p., 2 sheets.

Mount St. Helens
 

Barron, A. D., Ramsey, D. W. & Smith, J. G. (2014). Database for the Geologic Map of Upper Eocene to Holocene Volcanic and Related Rocks in the Cascade Range, Washington. U.S. Geological Survey Data Series , 842

 

Hopson, C. A. (2008). Geologic Map of Mount St. Helens, Washington Prior to the 1980 Eruption. U.S. Geological Survey Open-File Report , 2002-468, 2 Map Sheets. http://pubs.er.usgs.gov/publication/ofr2002468

 

Hausback, B. P. (2000). Geologic map of the Sasquatch Steps area, north flank of Mount St. Helens, Washington. U.S. Geological Survey Geologic Investigations Series , 2463, 1 map. http://pubs.er.usgs.gov/publication/i2463

 

Smith, J. G. (1993). Geologic map of Upper Eocene to Holocene volcanic and related rocks in the Cascade Range, Washington. U.S. Geological Survey Miscellaneous Investigations Map , 2005, 19p., 2 sheets.

West Crater Volcanic Field
 

Barron, A. D., Ramsey, D. W. & Smith, J. G. (2014). Database for the Geologic Map of Upper Eocene to Holocene Volcanic and Related Rocks in the Cascade Range, Washington. U.S. Geological Survey Data Series , 842

 

Smith, J. G. (1993). Geologic map of Upper Eocene to Holocene volcanic and related rocks in the Cascade Range, Washington. U.S. Geological Survey Miscellaneous Investigations Map , 2005, 19p., 2 sheets.

 

Wyoming

Yellowstone
 

Koch, R. D., Ramsey, D. W. & Christiansen, R. L. (2011). Database for the Quaternary and Pliocene Yellowstone Plateau Volcanic Field of Wyoming, Idaho, and Montana. U.S. Geological Survey Data Series , 551

 

Flynn, K., Wall, B. G., White, D. E., Hutchinson, R. A., Keith, T. E., Clor, L. & Robinson, J. E. (2008). Database of the Geology and Thermal Activity of Norris Geyser Basin, Yellowstone National Park.U.S. Geological Survey Data Series , 324

 

Morgan, L. A., Shanks III, W. P. & Webring, M. W. (2007). Bathymetry and Geology of the Floor of Yellowstone Lake, Yellowstone National Park, Wyoming, Idaho, and Montana. U.S. Geological Survey Scientific Investigations Map , 2973, 2 sheets.

 

Christiansen, R. L. (2001). The Quaternary and Pliocene Yellowstone Plateau Volcanic Field of Wyoming, Idaho, and Montana. U.S. Geological Survey Professional Paper , 729-G, 120p., 1 sheet.

 

Izett, G. A. & Wilcox, R. E. (1982). Map showing localities and inferred distributions of the Huckleberry Ridge, Mesa Falls, and Lava Creek ash beds (Pearlette family ash beds) of Pliocene and Pleistocene age in the western United States. U.S. Geological Survey Miscellaneous Investigations Map , I-1325, 5 maps on 1 sheet.