Dr. Vic Camp
Geological Sciences
San Diego State University
email: vcamp@mail.sdsu.edu
phone: 619-594-7170

Volcanology & petrology
Evolution of volcanic terrains


Philosophy
-- I believe in the teacher-scholar approach to higher education. As an educator, my primary focus lies in a wide variety of courses that I teach for non-majors, majors, and graduate students alike. I have a firm belief that the quality of teaching is enhanced by an active research program and enriched by field experiences beyond the classroom.

Research Interests -- My main field of research is in volcanology and petrology, with a specific focus on the tectonomagmatic evolution of continental volcanic terrains. Field mapping and the development of coherent volcanic stratigraphies is an essential first step in deciphering the genesis of such terrains, along with laboratory support incorporating major- and trace-element geochemistry, paleomagmatism, and isotopic dating. I have successfully used this interdisciplinary approach in regional studies to develop a variety of working models for volcanic terrains in Iran, Arabia, and in the Pacific Northwest, for example: (1) ocean closure along a Mesozoic continental suture zone in the Neo-Tethyan belt of eastern Iran (e.g., Camp and Griffis, 1982; Tirrul et al., 1983), (2) terrane accretion in the early Proterzoic mobile belts of the Arabian shield (e.g., Camp, 1984; Stoeser and Camp, 1985), (3) mantle upwelling in the Cenozoic harrat volcanic province of western Saudi Arabia (e.g., Camp et al., 1989; Camp and Roobol, 1991, 1992a, 1992b), and (4) plume emplacement in the Columbia River Basalt province and the northern Basin and Range (e.g., Camp, 1995; Camp et al., 2003; Camp and Ross, 2004; Hooper et al., 2007; Camp and Hanan, 2008; Camp, 2013, 2015; Camp et al., 2013, 2014). This latter region is where I concentrate most of my current research.

Education:

Ph.D. - 1976 - Washington State University
M.S. - 1972 - Miami University
B.S. - 1970 - Marshall University

Selected Recent Publications:

Camp, V.E., Pierce, K.L., and Morgan, L.A., 2015, Yellowstone plume trigger for Basin and Range extension, and dike injection oblique to regional stress along the Nevada-Columbia Basin magmatic belt: Geosphere, v. 11, no. 11.

Camp, V.E., 2013, Origin of the Columbia River Basalt: Passive rise of shallow mantle, or active rise of a deep-mantle plume?: in Reidel, S.P., Camp, V.E., Ross, M.E., Wolf, Martin, B., Tolan, T., and Wells, R., eds., The Columbia River Basalt Group, Geological Society of America Special Paper 497, p. 181-199.

Camp, V.E., and Hanan, B.B., 2008, A Plume-triggered Delamination Origin for the Columbia River Basalt Group, Geosphere, v. 4, no. 3, p. 480-495.

Camp, V.E., and Ross, M.E., 2004, Mantle Dynamics and Genesis of Mafic Magmatsim in the Intermontane Pacific Northwest, Journal of Geophysical Research, v. 109, no. B8, B)8204, d.o.i. 10.1029/2003JB2838 [printed 109(B8), 2004].

Camp, V.E., Ross, M.E., and Hanson, W., 2003, Genesis of flood basalts and basin-and-range volcanics from SteensMountain to the Malheur River Gorge, Oregon, Geological Society of America Bulletin, v. 115, p.l05-128.

Camp Websites:

TV Interviews:

Courses Taught:

Student Thesis:

 Masters Theses:

2009 - Michelle Dooley: "Geologic Mapping and Volcanic Evolution of the Warner Valley, Oregon"
1996 - Bill Hanson: "Volcanic Stratigraphy and Geologic Evolution of Riverside, Oregon"

Senior Theses:

2013 - Geogre Zach: "The chemistry and mineralogy of mafic dikes in the Lookout Mountain-West Point area, Skamania County, Washington: Feeders fot the basaltic andesite of Elkhorn Mountan?"
2011 - Steven Warner: "Geochemistry and Petrogenesis of mid-Miocene Volcanoes from the Ancestral Cascades of northeastern California"
2010 - Zachary Hasten: "Tertiary volcanism in the southern Buffalo Hills, Smoke Creek, Nevada"
2010 - Danny Cornquist: "The Smoke Creek dike swarm, northwestern Nevada"
2008 - Ryan Sholty: "Petrochemical stratigraphy of Steens Basalt from Catlow Peak, Oregon"
2007 - Maureen Moses: "Petrochemistry of the Jacumba Volcanics, Southern California"
2007 - Nicole Garcia: "Physical volcanology and petrochemistry of a basalt dike, Blizzard Gap, Oregon"
2005 - Dominique Ducote: "A field and petrochemical investigation of a Tertiary vent, Abert Rim, Oregon"
2003 - Mark Repking: "Major and trace element geochemistry and petrogenesis of the north-central Pisgah lavafield, Mojave Desert, California
2003 - Greg Collins: "Flow-emplacement features of the north-central Pisgah crater lavafield, Mojave Desert, California"
1999 - Josephine Gabriel: "The Genesis of a highly vesiculated lava found in the San Quintin volcanic field, Mexico"
1999 - Tiffany Hilborn: co-worker with Josephine Gabriel on the above thesis
1999 - Avi Schwartz: An educational website on the nature of volcanic eruptions
1999 - Dennise Brooks: co-worker with Avi Schwartz on above thesis

Masters Theses Committee Member:

2014 - Brian Rockwell
2014 - Greg Fisch
2014 - Jamie Purcell
2013 - Jason Parizek
2013 - Rachel Errthum
2013 - Jason Parizek
2013 - Will Munson
2012 - Eryn Voyles
2012 - Brian Tillquist
2012 - Tom Colby
2012 - Shane Peterson
2012 - Chris Kohl
2011 - Daniel Heaton
2011 - Adam Kjos
2011 - Nick Godinez
2010 - Holly Olsen
2010 - Lauren Sutton
2010 - Jason Ricketts
2010 - Cassady Bethel-Thompson
2010 - Adam Kjos
2009 - Dale Burns
2008 - Melanie Biggs
2008 - Jenny Duncan
2006 - Jennifer Perez
2006 - Jody Ebsen
2005 - Jared Marske
2004 - Derek Rector
2003 - Jeffery Marsh
2001 - Gregory Pierce (Art)
2001 - Patrick Garrow

Citations from Refereed Journals:

As of April 2015: 2050 total citations, 876 since 2010 (source: Google Citations)

Journal Publications:

Camp, V.E., Pierce, K.L., and Morgan, L.A., 2015, Yellowstone plume trigger for Basin and Range extension, and dike injection oblique to regional stress along the Nevada-Columbia Basin magmatic belt: Geosphere, v. 11, no. 11.

Camp, V.E., Ross, M.E., Duncan, R.A., Jarboe, N.A., Coe, R.C., Hanan, B.B., and Johnson, J.A., 2013, The Steens Basalt: Earliest lavas of the Columbia River Basalt Group, in Evolution of the Columbia River Basalt Group, in Reidel, S.P., Camp, V.E., Ross, M.E., Wolff, J.A., Martin, B.S., Tolan, TlL., and Wellsm R.E., editors, The Columbia River Flood Basalt Province: Geological Society of America Special Paper 497, p. 87-116.

Camp, V.E., 2013, Origin of the Columbia River Basalt: Passive rise of shallow mantle, or active rise of a deep-mantle plume?: in Reidel, S.P., Camp, V.E., Ross, M.E., Wolff, J.A., Martin, B.S., Tolan, TlL., and Wellsm R.E., editors, The Columbia River Flood Basalt Province: Geological Society of America Special Paper 497, p. 181-199.

Reidel, S.P., Camp, V.E., Tolan, T.L., and Martin, B.S., 2013, The Columbia River Flood-Basalt Province: stratigraphy, areal extent, volume, and physical volcanology, in Reidel, S.P., Camp, V.E., Ross, M.E., Wolff, J.A., Martin, B.S., Tolan, TlL., and Wellsm R.E., editors, The Columbia River Flood Basalt Province: Geological Society of America Special Paper 497, p. 1-43.

Reidel, S.P., Camp, V.E., Tolan, T., Kaufman, J., and Garwood, D., 2013, Tectonic evolution of the Columbia River Flood-Basalt Province, in Reidel, S.P., Camp, V.E., Ross, M.E., Wolff, J.A., Martin, B.S., Tolan, TlL., and Wellsm R.E., editors, The Columbia River Flood Basalt Province: Geological Society of America Special Paper 497, p. 293-324..

Barry, T.L.,Kelley, S.P., Reidel, S.P., Camp, V.E., Self, S., Jarboe, N.A., Duncan, R.A., and Renne, P., 2013, Age of the Columbia River Basalt Group, in Reidel, S.P., Camp, V.E., Ross, M.E., Wolff, J.A., Martin, B.S., Tolan, TlL., and Wellsm R.E., editors, The Columbia River Flood Basalt Province: Geological Society of America Special Paper 497, p. 45-66.

Camp, V.E., and Hanan, B.B., 2008, A Plume-triggered Delamination Origin for the Columbia River Basalt Group, Geosphere, v. 4, no. 3, p. 480-495.

Hooper, P.R., Camp, V.E., Reidel, S.P., and Ross, M.E., 2007, Origin of the Columbia River Flood Basalts: Plume vs. Nonplume Models, in The Origins of Melting Anamalies: Plates, Plumes, and Planetary Processes, G.R. Foulgar and D.M. Jurdy, editors, Geological Society of America Special Paper 430, p. 635-668.

Camp, V.E., and Ross, M.E., 2004, Mantle Dynamics and Genesis of Mafic Magmatsim in the Intermontane Pacific Northwest, Journal of Geophysical Research, v. 109, no. B8, B)8204, d.o.i. 10.1029/2003JB2838 [printed 109(B8), 2004].

Camp, V.E., Ross, M.E., and Hanson, W., 2003, Genesis of flood basalts and basin-and-range volcanics from Steens Mountain to the Malheur River Gorge, Oregon, Geological Society of America Bulletin, v. 115, p.l05-128.

Mellors, R.J., Camp, V.E., Vernon, F.L., Al-Amri, M.S., and Gharib, A., 1999, Regional waveform propagation in the Arabian Peninsula, Journal of Geophysical Research, v. 104, no. B9, p. 20,221-20,235.

Camp, V.E., 1995, Mid-Miocene propagation of the Yellowstone mantle plume head beneath the Columbia River basalt source region, Geology, v. 23, no. 5, p. 435-438.

Camp, V.E. and Roobol, M.J., 1992, Upwelling asthenosphere beneath western Arabia and its regional implications: Journal of Geophysical Research, v. 97, p. 15,255-15,271.

Camp, V.E., Roobol, M.J., and Hooper,P.R., 1992, The Arabian continental alkali basalt province: Part III, Evolution of Harrat Kishb, Kingdom of Saudi Arabia: Geological Society of America Bulletin, v. 104, p. 379-396.

Camp, V.E., and Roobol, M.J., 1991, Comment on "Topographic and volcanic asymmetry around the Red Sea: constraints on Red Sea models", by T.H. Dixon and others: Tectonics, v. 10, p. 649-652.

Camp, V.E., Roobol, M.J., and Hooper, P.R., 1991, The Arabian continental alkali basalt province: Part II, Evolution of Harrats Kura, Khaybar, and Ithnayn, Kingdom of Saudi Arabia: Geological Society of America Bulletin, v. 103, p. 363-391.

Roobol, M.J., and Camp, V.E., 1991, Discussion on the structural control of young basaltic fissure eruptions in the plateau basalt area of the Arabian Plate, northeastern Jordan, by I. Guba and H. Mustafa: Journal of Volcanology and Geothermal Research, v. 43, p. 365-366.

Camp, V.E., Roobol, M.J., 1989, The Arabian continental alkali basalt province: Part I, Evolution of Harrat Rahat, Kingdom of Saudi Arabia: Geological Society of America Bulletin, v. 101, p. 71-95.

Camp, V.E., Hooper, P.R., Roobol, M.J., and White, D.L., 1987, The Madinah historical eruption, Saudi Arabia: magma mixing and simultaneous extrusion of three basaltic chemical types, Bulletin of Volcanology, v.49, p. 489-508.

Stoeser, D. B., and Camp, V. E., 1985, Pan-African microplate accretion of the Arabian Shield: Geological Society of America Bulletin, v. 96, p. 817-826.

Camp, V. E., 1984, Island arcs and their role in the evolution of the western Arabian Shield: Geological Society of America Bulletin, v. 95, p. 913-921.

Camp, V. E., Jackson, N. J., Ramsay, C. R., Roobol, M. J., Stoeser D. B., and White, D.L., 1984, Discussion on the Upper Proterozoic ophiolitic melange zones of the easternmost Arabian Shield, by A. Al-Shanti and I. G. Gass: Journal of the Geological Society of London, v. 141, p. 1083-1087.

Tirrul, R., Bell, I. R., Griffis, R. J., and Camp, V. E., 1983, The Sistan suture zone of eastern Iran: Geological Society of America Bulletin, v. 94, p. 134-150.

Camp, V. E., Hooper, P. R., Swanson, D. A., and Wright, T. L., 1982, Columbia River Basalt in Idaho: physical and chemical characteristics, flow distribution, and tectonic implications, in, Bonnichsen, B. and Breckenridge, R. N., Eds.: The Cenozoic Geology of Idaho, Idaho Bureau of Mines and Geology Bulletin 26, p. 55-75.

Camp, V. E., and Griffis, R. J., 1982, Character, genesis, and tectonic setting of igneous rocks in the Sistan Suture Zone, eastern Iran: Lithos, v. 15, p. 221-239.

Camp, V. E., 1981, Upper Miocene basalt distribution, reflecting source locations, tectonism, and drainage history in the Clearwater Embayment, Idaho: Geological Society of America Bulletin, v. 92, p. 669-678.

Camp, V. E., and Hooper, P. R., 1981, Late Cenozoic evolution of the southeast part of the Columbia River Basalt Province: Geological Society of America Bulletin, v. 92, p. 659-668.

Hooper, P. R., and Camp, V. E., 1981, Deformation of the southeast part of the Columbia Plateau: Geology, v. 9, p. 323-328.

Camp, V. E., 1974, Mineralogy and petrology of a contact aureole, Elkhorn District, Montana: Northwest Geology, v. 4, p. 29-31.

Recent Abstracts:

Kimbrough, D.L., and Camp, V.E., 2014, Middle Miocene high-magnesium andestie and high-silica adakite in the Jacumba volcanics and Alverson formation of San /Diego and Imperial Counties, California: GSA Annual meeting (Vancouver), Abstracts with Programs, Paper 343-13.

Camp, V.E. Ross, M.E., Duncan, R.A., and Kimbrough, D.L., 2014, Early Manifestation of Yellowstone hotspot volcanism along a northeast-trending, 280-km-long lithospheric discontinuity, GSA Abstracts with Programs, v. 46, p. 93.

Camp, V.E., 2013, Yellowstone plume catalyst for Basin and Range extension, Geological Society of America Abstracts with Programs, Annual meeting, Denver, v. 45, p. 56.

Camp, V.E., 2011, Was mid-Miocene extension in the Northern Basin and Range a product of plume impingement, plate reorganization, or both?, GSA Cordilleran-Rocky Mountain Joint Section meeting, v. 43, no. 4 , Abs. 2-8, p.4

Warner, S.J., and Camp, V.E., 2011, Geochemistry and petrogenesis of mid-Miocene volcanoes from the ancestral Cascades of northeastern California, GSA Cordilleran-Rocky Mountain Joint Section meeting, v. 43, no. 4, Abs. 19-8.

Hasten, Z., and Camp, V.E., 2010, Tertiary Volcanism in the southern Buffalo Hills, Smoke Creek, Nevada, GSA Cordilleran Section meeting, v. 42, no. 4, Abs. 173679.

Cornquist, D. and Camp, V.E., 2010, The Smoke Creek dike swarm, northwestern Nevada, GSA Cordilleran Section meeting, v. 42, no. 4, Abs. 173702.

Camp, V.E., 2009, Mid-Miocene emplacement of the Yellowstone mantle plume in the Cascadia back-arc region, GSA Annual meeting - Keynote Pardee Symposium, v. 41, p. 571 (invited)

Camp, V. E., and Ross, M.E., 2009, Regional synthesis of Steens Basalt, Columbia River Basalt Group, GSA Annual meeting, v. 41, p. 225.

Camp, V.E. and Hanan, B.B., 2008, Derivation of the Columbia River Flood Basalts by plume emplacement and delamination against the cratonic margin of North America, Goldschmidt Conference, Vancouver, British Columbia, p. A132.

Camp, V.E., 2007, Is the uplift and tectonic history of the Blue Mountains, Oregon, consistent with a model of plume-induced delamination?, GSA Annual meeting, v. 39, No. 6, Abstract 125802.

Camp, V.E. and Hanan, B.B., 2007, Melting of Columbia River flood basalt source components by delamination above the Yellowstone mantle-plume head, GSA Annual meeting, v. 39, No. 6, Abstract 125796 (invited).

Ross, M.E. and Camp, V.E., 2007, Pillows formed by the injection of lava into the crystal mush of a thin Steens basalt flow, GSA Annual meeting, v. 39, No. 6, Abstract 125294.

Camp, V.E. and Hanan, B.B., 2007, A mantle-plume trigger for delamination beneath the source region of the Columbia River Flood Basalt Province, International Union of Geodesy and Geophysics - Perugia, Italy.

Dooley, M. and Camp, V.E., 2007, Preliminary geologic mapping and petrochemistry stratigraphy of the Warner Valley, Oregon, GSA Cordilleran Section meeting, No. 4-4.

Garcia, N. and Camp, V.E., 2007, Dike emplacement and geochemistry of a high-alumina olivine tholeiite, Blizzard Gap, Oregon, GSA Cordilleran Section meeting, No. 30-5.

Camp, V.E., 2006, Overview: Birth of the Snake River Plain, Eos Trans. AGU, 87(52), Fall Meet. Suppl., Abstract V43D-01 (invited).

Camp, V.E. and Hanan, B.B., 2006, Did the Nascent Yellowstone Plume Interact with the Juan de Fuca Plate?, Eos Trans. AGU, 87(52), Fall Meet. Suppl., Abstract V51D

Camp, V.E., Ross, M.E., and Hooper, 2005, The Great Volcanic Outburst Initiating the Yellowstone Hotspot, Geological Society of America Abs. with Programs, A84-2, p. 201 (invited paper).

Camp, V.E., Hooper, P.R., and Ross, M.E., 2005, The calc-alkaline paradox of the inland Pacific Northwest, Goldschmidt Conference (invited paper), Moscow, Idaho, p. A138.

Camp, V.E., Orihashi, Y., and Ross, M.E., 2004, Radial volcanic migrations above continental hotspots: examples from Arabia and the Pacific Northwest, Am. Geophs. Union, Mantle Plume Session 54-2, p. 135.

Camp, V.E., and Ross, M.E., 2004, A two-stage spreading model for the Yellowstone mantle plume head, Geological Society of America Abstracts with programs, Yellowstone hostpot symposium, vol. 36, no. 4, A44-10, p. 97.

Camp, V. E. and Ross, M.E., 2003, Extending the CRB Province into southeastern Oregon: A reevaluation of flood- basalt volume, effusion rates, regional correlations, and volcanic migrations, Geological Society of America Abstracts with programs, Topical Session 134, v. 34, no. 7, p. A135.

Camp, V.E., and Ross, M.E., 2002, Regional geology of flood basalts and Basin-and-Range volcanic rocks north of Steens Mountain, Oregon, Geological Society of America Abstracts with Programs, p. A38.

Camp, V.E., and Ross, M.E., 2000, Mapping the Steens-Columbia River Basalt Connection: Implications for the extent, volume, and magma supply rate of CRB volcanism, Geological Society of America Abstracts with Programs, Annual meeting, Reno, Vol. 32, No. 7.

Camp, V.E., Ross, M.E., and Hanson, W., 2000, Volcanic Stratigraphy of the middle and south forks of the Malheur River Gorge, eastern Oregon, Geological Society of America Abstracts with Programs, Cordilleran Section, v. 32, no. 6, p. A7.

Mellors, R.J., Camp, V.E., Vernon, F.L.,1998, Regoinal waveform propagation in the Saudi Arabian Peninsula: Anomalous mantle under the Arabian Shield?, EOS, Transactions, American Geophysical Union, special section: Seismic Structure and Tectonics of Africa, v. 79, p. F581.

Camp, V.E. and Ross, M.E., 1998, Petrochemical variation and regional correlation of the Steens basalts and related rocks north of Steens Mountain, Oregon, Geological Society of America Abstracts with Programs, Cordilleran Section, v. 30, p. 8.

Hanson, W., Camp, V.E., and Pyle, D., 1998, volcanotectonic and paleodrainage history of Riverside, Oregon, Geological Society of America Abstracts with Programs, Cordilleran Section, v. 30, p. 17.

Roobol, J.R., and Camp, V.E., 1997, Propagation of giant basaltic lava flows across a low-angle surface as chains of rootless shield volcanoes — the "whaleback" lava flows of Harrat Khaybar, Kingdom of Saudi Arabia, Chapman Conference on Long Lava Flows, James Cook University, North Queensland, Townsville, Australia.

Maps and explanatory text:

Dooley, M.M., Camp, V.E., and McClaughry, J.D., 2009, Geologic Map of the Southern Warner Valley, Lake County, Oregon, Department of Oregon Geology and Mineral Industries Open-File Report O-XX-XX, 1:48,000-scale, funded in part by the USGS National Cooperative Geologic Mapping Program EDMAP award 06HQAG0093.

Camp, V.E. and Ross, M.E., 2003, Geologic maps of the Juntura, Selle Gap, Winnemucca Creek, Mosquito Mountain, Dunnean, McEwen Butte, Circle Bar, and Venator quadrangles (eastern Oregon), 1:24,000 scale. These are unpublished maps that have been compiled by the Department of Oregon Geology and Mineral Industries, as part of their eastern Oregon 1:100,000-scale map series.

Reidel, S.P., Hooper, P.R., Webster, G.W., and Camp, V.E., 1992, Geologic map of southeastern Asotin County, Washington: Washington State Department of Natural Resources, Division of Geology and Earth Resources, Geologic Map GM-40, 1:48,000 scale.

Camp, V.E., and Roobol, M.J., 1991, Geologic map of the Cenozoic Harrat Rahat lava field and the adjacent Red Sea coast (with text): Saudi Arabian Deputy Ministry for Mineral Resources, Geoscience Map GM-130, 1:250,000 scale, 101 p., 17 Figs, 10 Tables, 1 Appendix, 1 Plate.

Roobol, M.J., and Camp, V.E., 1991, Geologic map of the Cenozoic Harrats Khaybar, Ithnayn, and Kura (with text): Saudi Arabian Deputy Ministry for Mineral Resources, Geosience Map GM-131, 1:250,000 scale, 76p., 19 Figs., 5 Tables, 1 Appendix, 1 Plate.

Roobol, M.J., and Camp, V.E., 1991, Geologic map of the Cenozoic Harrat Kishb volcanic field (with text): Saudi Arabian Deputy Ministry for Mineral Resources, Geoscience Map GM-132 1:250,000 scale, 63p., 14 Figs., 5 Tables, 1 Appendix, 1 Plate.

Camp, V. E., 1989, Geology of the Jabal Subh quadrangle, sheet 23/39A, Kingdom of Saudi Arabia (with text): Saudi Arabian Deputy Ministry for Mineral Resources, Geoscience Map, 1:100,000 scale, Open-file Report DGMR-OF-05-24, 40 p.

Tirrul, R., Griffis, R. J., Camp, V. E., Johns, G., Willoughby, N., and Bell, I. R., 1989, Reconnaissance geology of the Zabol quadrangle (with text): Geological and Mineral Survey of Iran, 1:250,000 scale (also includes six sheets at 1:100,000 scale).

Bell, I. R., Griffis, R. J., Camp, V. E., Johns, G., Lowmans, R., Willoughby, N., and Tirrul, R., 1989, Reconnaissance geology of the Sefidabeh quadrangle (with text): Geological and Mineral Survey of Iran, 1:250,000 scale (also includes four sheets at 1:100,000 scale).

Camp, V. E., 1986, Geology of the Umm al Birak quadrangle, sheet 23D, Kingdom of Saudi Arabia (with text): Saudi Arabian Deputy Ministry for Mineral Resources, Geoscience Map GM-87 1:250,000 scale, 40 p., 8 Fig., 4 Tables, 1 Appendix, 2 Plates.

Hooper, P. R., Webster, G. D., and Camp, V. E., 1985, Geologic map of the Clarkston 15 Minute quadrangle, Washington and Idaho: Washington State Department of Natural Resources, Division of Geology and Earth Resources, Geologic Map GM-31, 1:48,000 scale.

Camp, V. E., 1981, Reconnaissance geological map of the Columbia River Basalt Group, Pullman, Hamilton, Grangeville, and Elk City quadrangles, west-central Idaho: In, Swanson and others, Reconnaissance geologic map of the Columbia River Basalt Group, northern Oregon and western Idaho: U.S. Geological Survey, Open-file Report 81-797, 1:250,000 scale.

Swanson, D. A., Wright, T. L., Camp, V. E., Gardner, J. N., Helz, R. T., Price, S. M., Reidel, S. P., and Ross, M., 1980, Reconnaissance geologic map of the Pullman and Walla Walla quadrangles, southeast Washington and adjacent Idaho: U.S. Geologcal Survey, Geologic Map I-1139, 1:250,000 scale.

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