Mackenzie Keith

Biography

Mackenzie joined the Oregon Water Science Center team in 2009.  Mackenzie received her B.S. in Geology from Oregon State University in 2006 and M.S. in Geology from Portland State in 2012.  Her current projects include characterizing the upstream geomorphic response of dam removal on the Sandy River, mapping the Willamette River floodplain geomorphology, and tracking erosion and deposition patterns along Fanno Creek, an urban stream near Portland.

 

 

 

 

 

Publications

Sherrod, D.R., and Keith, M.K., 2018, GIS database and discussion for the distribution, composition, and age of Cenozoic volcanic rocks of the Pacific Northwest Volcanic Aquifer System study area: U.S. Geological Survey Open-File Report 2018–1030, 16 p., https://doi.org/10.3133/ofr20181030.

Anderson, S.W., Keith, M.K., Magirl, C.S., Wallick, J.R., Mastin, M.C., and Foreman, J.R., 2017, Geomorphic response of the North Fork Stillaguamish River to the State Route 530 landslide near Oso, Washington: U.S. Geological Survey Scientific Investigations Report 2017–5055, 85 p., https://doi.org/10.3133/sir20175055.

Magirl, Christopher S.; Keith, Mackenzie K.; Anderson, Scott W.; O'Connor, Jim E.; Robert Aldrich; Mastin, Mark C., 2015. Preliminary assessment of aggradation potential in the North Fork Stillaguamish River downstream of the State Route 530 landslide near Oso, Washington. U.S. Geological Survey Scientific Investigations Report 2015-5173, v, 20 p. [Link]

Aldous, A.; Gannett, Marshall W.; Keith, Mackenzie K.; O'Connor, James E., 2015. Geologic and geomorphic controls on the occurrence of fens in the Oregon Cascades and implications for vulnerability and conservation. Society of Wetland Scientists Wetlands , 11 p. [Link]

O'connor, James E.; Atwater, Brian F.; Cohn, Timothy A.; Cronin, Thomas M.; Keith, Mackenzie K; Smith, Christopher G.; Mason, Robert R., 2014. Assessing inundation hazards to nuclear powerplant sites using geologically extended histories of riverine floods, tsunamis, and storm surges. U.S. Geological Survey Scientific Investigations Report 2014-5207, vi, 65 p. [Link]

O'Connor, Jim E., Mangano, Joseph F., Anderson, Scott W., Wallick, J. Rose, Jones, Krista L., and Keith, Mackenzie K., 2014, Geologic and physiographic controls on bed-material yield, transport, and channel morphology for alluvial and bedrock rivers, western Oregon: Geological Society of America Bulletin, v. 126, no. 3-4, p. 377-397. [Link]

Keith, M.K., Sobieszczyk, S., Goldman, J.H., Rounds, S.A. 2014. Investigating Organic Matter in Fanno Creek, Oregon, Part 2 of 3: Sources, sinks, and transport of organic matter with fine sediment. J. Hydrol., 519 (2014), pp. 3010–3027. [Link]

Sobieszczyk, S., Keith, M.K., Rounds, S.A., Goldman, J.H. 2014. Investigating Organic Matter in Fanno Creek, Oregon, Part 1 of 3: Estimating Annual Foliar Biomass for a Deciduous-Dominant Urban Riparian Corridor. J. Hydrol. 519, 3001–3009. [Link]

Goldman, J.H., Rounds, S.A., Keith, M.K., Sobieszczyk, S., 2014. Investigating organic matter in Fanno Creek, Oregon, part 3 of 3: identifying and quantifying sources of organic matter to an urban stream. J. Hydrol. 519, 3028–3041. [Link]

Wallick, J. Rose; Jones, Krista L.; O'Connor, Jim E.; Keith, Mackenzie K.; Hulse, David; Gregory, Stanley V., 2013. Geomorphic and vegetation processes of the Willamette River floodplain, Oregon: current understanding and unanswered science questions. U.S. Geological Survey Open-File Report 2013-1246, 70 p. [Link]

O’Connor, J.E. McDowell, P.F., Lind, Pollyanna, Rasmussen, C.G., and Keith, M.K., 2013, Geomorphology and flood-plain vegetation of the Sprague and lower Sycan Rivers, Klamath Basin, Oregon: U.S. Geological Survey Webpage, http://or.water.usgs.gov/proj/Sprague/report/index.html, doi:10.5066/F7BG2M0R [Link]

Major, Jon J.; O'Connor, Jim E.; Podolak, Charles J.; Keith, Mackenzie K.; Grant, Gordon E.; Spicer, Kurt R.; Pittman, Smokey; Bragg, Heather M.; Wallick, J. Rose; Tanner, Dwight Q.; Rhode, Abagail; Wilcock, Peter R., 2012. Geomorphic response of the Sandy River, Oregon, to removal of Marmot Dam. U.S Geological Survey Professional Paper 1792, 64 p. [Link]

Jones, Krista L.; O'Connor, Jim E.; Keith, Mackenzie K.; Mangano, Joseph F.; Wallick, J. Rose, 2012. Preliminary assessment of channel stability and bed-material transport in the Coquille River basin, southwestern Oregon. U.S. Geological Survey Open-File Report 2012-1064, 84 p. [Link]

Jones, Krista L.; Keith, Mackenzie K.; O'Connor, Jim E.; Mangano, Joseph F.; Wallick, J. Rose, 2012. Preliminary assessment of channel stability and bed-material transport in the Tillamook Bay tributaries and Nehalem River basin, northwestern Oregon. U.S. Geological Survey Open-File Report 2012-1187, 120 p. [Link]

Jones, Krista L.; O'Connor, Jim E.; Keith, Mackenzie K.; Mangano, Joseph F.; Wallick, J. Rose, 2012. Preliminary assessment of channel stability and bed-material transport in the Rogue River basin, southwestern Oregon. U.S. Geological Survey Open-File Report 2011-1280, 96 p. [Link]

Carpenter, K.D, Czuba, C.R., Magirl, C.S., Marineau, M.D., Sobieszcyzk, Czuba, J.A., and Keith, M.K., 2012, Geomorphic setting, aquatic habitat, and water-quality conditions of the Molalla River, Oregon, 2009-10: U.S. Geological Survey Scientific Investigations Report 2012-5017, 78 p. [Link]

Jones, K.L., O’Connor, J.E., Keith, M.K., Mangano, J.F., and Wallick, J.R., 2012, Preliminary assessment of the stability and bed-material transport in the Rogue River basin, southwestern Oregon: U.S. Geological Survey Open-file Report 2011-1280, 96 p. [Link]

Keith, M.K., 2012, Reservoir evolution following the removal of Marmot Dam on the Sandy River, Oregon: Portland, Oregon, Portland State University, M.S. thesis, 120 p. [Link]

Jones, K.L., Wallick, J.R., O'Connor, J.E., Keith, M.K., Mangano, J.F., Risley, J.C., 2011, Preliminary assessment of channel stability and bed-material transport along Hunter Creek, southwestern Oregon. U.S. Geological Survey Open-File Report 2011-1160, 41 p. [Link]

Wallick, J. Rose; O'Connor, Jim E.; Anderson, Scott; Keith, Mackenzie; Cannon, Charles, Risley, John C., 2011. Channel change and bed-material transport in the Umpqua River basin, Oregon. U.S. Geological Survey Scientific Investigations Report 2011-5041, 110 p. [Link]

Jones, K.L., O’Connor, J.E., Wallick, J.R., Anderson, S.W., Keith, M.K, Mangano, J.F., 2010, Bed-material, channel stability, and regional gravel production dynamics in Oregon coastal rivers, 2010, Abstract EP31A-0726 presented at 2010 Fall Meeting, American Geophysical Union, San Francisco, California, December 13-17, 2010.

Wallick, J.R., Anderson, S.W., Keith, M.K., Cannon, C., and O’Connor, J.E., 2010, Assessing patterns of bed-material storage and flux on a mixed bedrock-alluvium river: Umpqua River Oregon, USA: Abstract H43D-1295 presented at 2010 Fall Meeting, American Geophysical Union, San Francisco, California, December 13-17, 2010.

Podolak, C.J., Major, J.J., Keith, M.K., O’Connor, J.E., and Wallick, J.R., 2010, One River’s Response to large dam removal, in Vignettes- on-line case study supplements to Bierman, Paul and Montgomery, David, (eds.), Key Concepts in Geomorphology: W.H. Freemen, Vermont, on-line supplement available at http://serc.carleton.edu/39733. [Link]

Podolak, C.J., Major, J.J., Keith, M.K., O’Connor, J.E., and Wallick, J.R., 2010, (Sediment) Accounting 101: An Example, in Vignettes- on-line case study supplements to Bierman, Paul and Montgomery, David, (eds.), Key Concepts in Geomorphology: W.H. Freemen, Vermont, on-line supplement available at http://serc.carleton.edu/39732. [Link]

Keith, M.K., Wallick, J.R., Major, J.J., O’Connor, J.E., Spicer, K.R., Rhode, A., 2009, Comparison of pre- and post-dam attributes of the reservoir reach of the Sandy River following removal of Oregon’s Marmot Dam: Geological Society of America Abstracts with Programs, vol. 41, no. 7, p. 132.

Wallick, J.R., Major, J.J., Spicer, K.R., Rhode, A., Keith, M.K., O’Connor, J.E., Burkholder, B.K., Grant, G.E., Tanner, D.Q., and Saunders, D., 2008, Erosion and redeposition of reservoir sediment in response to removal of Marmot Dam, Sandy River, Oregon: Abstract H42B-0995 presented at 2008 Fall Meeting, American Geophysical Union, San Francisco, California, December , 15-19, 2008.

Keith, M.K. and Waibel, M.S., 2008, Erosion along the Molalla River, Canby, Oregon: Site assessment and possible mitigation for unstable slopes between 775 and 601 North Baker Drive, Canby, Oregon, in Island, H.D., ed., Proceedings of the Oregon Academy of Science, Portland, Oregon, February 23, 2008, v. 66, p. 22.