Maps
This Maps webpage contains descriptions of and links to USGS topographic maps, the National Map, and other types of maps that are not official USGS publication series, including online interactive maps related to Region 7: Upper Colorado Basin. To access USGS publications series maps related to Region 7, please visit the Publications page of this web site.
Filter Total Items: 189
Geologic map of the Sauk River 30- by 60-minute quadrangle, Washington Geologic map of the Sauk River 30- by 60-minute quadrangle, Washington
Summary -- The north-south-trending regionally significant Straight Creek Fault roughly bisects the Sauk River quadrangle and defines the fundamental geologic framework of it. Within the quadrangle, the Fault mostly separates low-grade metamorphic rocks on the west from medium- to high-grade metamorphic rocks of the Cascade metamorphic core. On the west, the Helena-Haystack melange and...
Geologic map of the Saint Joseph area, Missouri and Kansas Geologic map of the Saint Joseph area, Missouri and Kansas
This map was prepared as a collaborative effort with the Missouri Division of Geology and Land Survey, the Kansas Geological Survey, and the Nebraska Conservation and Survey Division. Map units and preliminary contacts between units were identified using stereoscopic pairs of high altitude, false color infrared, aerial photographs. Contacts were drawn on twelve USGS 7.5-minute...
Maps Showing Locations of Damaging Landslides Caused by El Nino Rainstorms, Winter Season 1997-98, San Francisco Bay Region, California Maps Showing Locations of Damaging Landslides Caused by El Nino Rainstorms, Winter Season 1997-98, San Francisco Bay Region, California
Heavy rainfall associated with a strong El Nino caused over $150 million in landslide damage in the 10-county San Francisco Bay region during the winter and spring of 1998. Reports of landsliding began in early January 1998 and continued throughout the winter and spring. On February 9, President Clinton declared all 10 counties eligible for Federal Emergency Management Agency (FEMA)...
Map showing locations of damaging landslides in San Francisco City and County, California, resulting from 1997-98 El Nino rainstorms Map showing locations of damaging landslides in San Francisco City and County, California, resulting from 1997-98 El Nino rainstorms
Heavy rainfall associated with a strong El Nino caused over $150 million in landslide damage in the 10-county San Francisco Bay region during the winter and spring of 1998. A team of USGS scientists collected information on landslide locations and damage costs. About $4 million in damages were assessed in San Francisco City and County.
Bedrock geologic map of the Yucca Mountain area, Nye County, Nevada Bedrock geologic map of the Yucca Mountain area, Nye County, Nevada
Yucca Mountain, Nye County, Nevada, has been identified as a potential site for underground storage of high-level radioactive nuclear waste. Detailed bedrock geologic maps form an integral part of the site characterization program by providing the fundamental framework for research into the geologic hazards and hydrologic behavior of the mountain. This bedrock geologic map provides the...
Quaternary geologic map of the Dallas 4° x 6° quadrangle, United States Quaternary geologic map of the Dallas 4° x 6° quadrangle, United States
The Quaternary Geologic Map of the Dallas 4° x 6° Quadrangle was mapped as part of the Quaternary Geologic Atlas of the United States. The atlas was begun as an effort to depict the areal distribution of surficial geologic deposits and other materials that accumulated or formed during the past 2+ million years, the period that includes all activities of the human species. These materials...
Quaternary geologic map of the Austin 4° x 6° quadrangle, United States Quaternary geologic map of the Austin 4° x 6° quadrangle, United States
This map is part of the Quaternary Geologic Atlas of the United States (I-1420). It was first published as a printed edition in 1993. The geologic data have now been captured digitally and are presented here along with images of the printed map sheet and component parts as PDF files. The Quaternary Geologic Map of the Austin 4° x 6° Quadrangle was mapped as part of the Quaternary...
Maps showing hydrostatic levels and general ground-water quality for an area near Conifer, Colorado Maps showing hydrostatic levels and general ground-water quality for an area near Conifer, Colorado
Static water levels (SWL's) were measured in more than one hundred wells in the study area during April-May 1989. The water levels were monitored for 10-15 minutes to determine if they were static. If a given level was found not to be static, the measurement was repeated at a later data when the level was static.
Quaternary geologic map of the White Lake 4° x 6° quadrangle, United States Quaternary geologic map of the White Lake 4° x 6° quadrangle, United States
This map is part of the Quaternary Geologic Atlas of the United States (I-1420). It was first published as a printed edition in 1990. The geologic data have now been captured digitally and are presented here along with images of the printed map sheet and component parts as PDF files. The Quaternary Geologic Map of the White Lake 4° x 6° Quadrangle was mapped as part of the Quaternary...