| Value | Definition |
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| 1 | Lineament across Quaternary unit from 1:100,000 shaded relief DEM.
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| 2 | Sherrod, D. R., and Pickthorn, L. G., 1992, Geologic map of the west half of the Klamath Falls 1¡ by 2¡ Quadrangle, south-central Oregon: U.S. Geological Survey Miscellaneous Investigations Series Map I-1282, scale 1:250,000.
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| 3 | Bacon, C. R., Mastin, L. G., Scott, K. M., and Nathenson, M., 1997, Volcano and earthquake hazards in the Crater Lake region, Oregon: U.S. Geological Survey Open-File Report 97-487, 32 p., 1 sheet.
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| 4 | Klinger, R. E., Vetter U. R., and Ryter, D. W., 1996, Seismotectonic study for Gerber Dam, Klamath Project, California-Oregon: U.S. Bureau of Reclamation Seismotectonic Report 96-1.
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| 5 | MacLeod, N. S., and Sherrod, D. R., 1992, Reconnaissance geologic map of the west half of the Crescent 1¡ by 2¡ Quadrangle, central Oregon: U.S. Geological Survey Miscellaneous Investigations Series Map I-2215, 1 sheet, scale 1:250,000.
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| 6 | Hawkins, F. F., LaForge, R. C., and Gilbert, J. D., 1989, Seismotectonic study for Wickiup and Crane Prairie Dams, Deschutes Project, Oregon: U.S. Bureau of Reclamation Seismotectonic Report 89-2.
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| 7 | Moring, B. C., 1983, Reconnaissance surficial geologic map of the Medford 1¡ by 2¡ Quadrangle, Oregon-California: U.S. Geological Survey Miscellaneous Studies Map MF-1528, 2 sheets, scale 1:125,000.
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| 8 | Walker, G. W., and MacLeod, N. S., 1991, Geologic map of Oregon: U.S. Geological Survey Special Geologic Map, 2 sheets, scale 1:500,000.
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| 9 | Bacon, C. R., Lanphere, M. A., and Champion, D. E., 1999, Late Quaternary slip rate and seismic hazards of the West Klamath Lake fault zone near Crater Lake, Oregon Cascades: Geology, v. 27, p. 43-46.
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| 10 | Smith, J. G., 1988, Geologic map of the Pelican Butte Quadrangle, Klamath County, Oregon: U.S. Geological Survey Geologic Quadrangle Map GQ-1653, 1 sheet, scale 1:62,500.
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| 11 | Carver, G. A., 1972, Glacial geology of the Mountain Lakes Wilderness and adjacent parts of the Cascade Range, Oregon, Ph.D. Dissertation, University of Washington, Seattle, Washington, 75 p.
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| 12 | Ake, J. P., and Hawkins, F. F., 1999, Preliminary probabilistic ground motion evaluation, Crescent Lake Dam, Crescent Lake Project, Oregon: U.S. Department of Interior Technical Memorandum No. D8330-99-023.
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| 13 | Pezzopane, S. K., 1993, Active faults and earthquake ground motions in Oregon, Ph.D. Dissertation, University of Oregon, Eugene, Oregon, 250 p.
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| 14 | Sherrod, D. R., 1991, Geologic map of a part of the Cascade Range between latitudes 43¡ - 44¡, central Oregon: U.S. Geological Survey Miscellaneous Investigations Series I-1891, 14 p., 1 sheet, scale 1:125,000.
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| 15 | Langridge, R. M., 1996, Unpublished map accompanying Langridge, R. M., Weldon, R. J., II, Pezzopane, S. K., and Jellinek, A. M., 1996, Active faulting and tufa formation: A possible kinematic link between Albert Rim and Viewpoint Faults: Geological Society of America Abstracts with Programs, v. 28, n. 5, p. 74.
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| 16 | Ryter, D. W., and Vetter, U. R., 1993, Seismotectonic Study for Haystack Dam, Deschutes Project, Oregon: Bureau of Reclamation Seismotectonic Report 93-1.
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| 17 | Wong, I. G., Dober, M., Hemphill-Haley, M. A., Naugler, W., and Silva, W. J., 1999, On probabilistic seismic hazard analysis and safety evaluation; earthquake ground motions, Bully Creek Dam, Vale Project, eastern Oregon: U.S. Department of Interior Technical Memorandum No. D8330-99-28.
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| 18 | Hawkins, F. F., Gilbert, J. D., and LaForge, R. C., 1989, Seismotectonic Study for Warm-Springs Dam - Vale Project and Owyhee Dam - Owyhee Project, Oregon: Bureau of Reclamation Seismotectonic Report 89-6.
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| 19 | Hawkins, F. F., LaForge, R. C., Templeton, M., and Gilbert, J. D., 1988, Seismotectonic study for Arthur R. Bowman and Ochoco Dams, Crooked River Project, Oregon: Bureau of Reclamation Seismotectonic Report 88-10.
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| 20 | Narwold, C. F., 1999, Late Quaternary faulting in the Quinn River Fault Zone, a soils investigation: Friends of the Pleistocene Field Trip Guide, Pacific Cell.
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| 21 | Mimura, K., 1992, Reconnaissance geologic map of the west half of the Bend and the east half of the Shelvin Park 7.5' Quadrangles, Deschutes County, Oregon: U.S. Geological Survey Miscellaneous Field Studies Map MF-2189, 1 sheet, scale 1:24,000.
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| 22 | Taylor, E. M., 1981, Central High Cascade roadside geology, in Johnston, D. A., and Donnelly-Nolan, J., eds., Guides to Some Volcanic Terrains in Washington, Idaho, Oregon, and Northern California: U.S. Geological Survey Circular 838, p. 55-83.
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| 23 | Hemphill-Haley, M. A., 1995, Unpublished data.
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| 24 | Hemphill-Haley, M. A., Page, W. D., Burke, R., and Carver, G. A., 1989, Holocene activity of the Alvord fault, Steens Mountain, southeastern Oregon: Final Report to the U.S. Geological Survey under Grant No. 14-08-0001-61333, 45 p.
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| 25 | Hemphill-Haley, M. A., 1987, Quaternary stratigraphy and late Holocene faulting along the base of the eastern escarpment of Steens Mountain, southeastern Oregon, M.A. thesis, Humboldt State University, Arcata, California, 87 p.
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| 26 | Lindberg, D. N., 1999, A synopsis of late Pleistocene shorelines and faulting, Tule Springs Rims to Mickey Basin, Alvord Desert, Harney County, Oregon.
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| 27 | Weldon, E. M., Unpublished air photo mapping of the Hot Springs fault, Summer Lake Basin.
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| 28 | Simpson, G. D., Hemphill-Haley, M. A., Wong, I. G., Bott, J. D., Silva, W. J., and Lettis, W.R., 1993, Seismotectonic evaluation, Burnt River Project-Unity Dam and Baker Project-Thief Valley Dam, northwestern Oregon: Final Report, prepared for U.S. Bureau of Reclamation.
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| 29 | Mann, G. M., and Meyer, G. E., 1993, Late Cenozoic structure and correlations to seismicity along the Olympic-Wallowa lineament, northwest United States: Geological Society of America Bulletin, v. 105, p. 853-871.
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| 30 | Vetter, U. R., 1998, Preliminary seismic hazard evaluation Mason Dam, Baker Project, Oregon, Technical Memorandum No. D8330-98-015, prepared for the U.S. Bureau of Reclamation, Denver, Colorado.
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| 31 | Wong, I. G., Dober, M., Hemphill-Haley, M.A., Naugler, W., and Silva, W. J., 1999, On probabilistic seismic hazard analysis and safety evaluation; earthquake ground motions, Bully Creek Dam, Vale Project, eastern Oregon: U.S. Department of Interior Technical Memorandum No. D8330-99-28.
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| 32 | Piety, L. A., LaForge, R. C., and Foley, L. L., 1990, Seismotectonic study for Cold Springs and McKay Dams, Umatilla Project, Oregon: Seismotectonic Report 90-1, prepared for U.S. Bureau of Reclamation, Denver, Colorado.
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| 33 | Geomatrix Consultants, 1990, Seismotectionic evaluation, Waco Dam site: Final Report, prepared for U.S. Bureau of Reclamation, 115 p.
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| 34 | Minor, S. A., 1986, Stratigraphy and structure of the Western Trout Creek and Northern Bilk Creek Mountains, Harney County, Oregon and Humboldt County, Nevada, M.S. thesis, University of Colorado, Boulder, Colorado.
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| 35 | Walker, G. W., 1973, Reconnaissance geologic map of the Pendleton Quadrangle, Oregon and Washington: U.S. Geological Survey Miscellaneous Investigation Map I-727, 1 sheet, scale 1:250,000.
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| 36 | Walker, G. W., Peterson, N. V., and 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 Series Map I-493, 1 sheet, scale 1:250,000.
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| 37 | Weldon, R. J., II, Unpublished mapping.
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| 38 | Geomatrix Consultants, 1995, Seismic design mapping, State of Oregon: Final Report, prepared for Oregon Department of Transportation, 252 p.
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| 39 | Swanson, D. A., 1969, Reconnaissance geologic map of the east half of the Bend quadrangle, Crook, Wheeler, Jefferson, Wasco, and Deschutes Counties, Oregon: U.S. Geological Survey Miscellaneous Geologic Investigations Map I-568, scale 1:250,000.
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| 40 | Faults digitized from reference #36 that cut or bound Quaternary units.
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| 41 | Faults digitized from reference #36 that do not cut or bound Quaternary units, but are kinematically related to other active faults.
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| 42 | Faults drawn from DEM that do not cut or bound Quaternary units, but are kinematically related to other active faults.
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| 43 | Faults taken from digital Oregon State geologic map (digital version of reference #8) that bound or cut Quaternary units (little effort was made to check or redraw these faults).
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| 44 | Faults with numbered references on Personius, S. F., Dart, R. L., Bradley, Lee-Ann, and Haller, K. M., 2003, Map and data for Quaternary faults and folds in Oregon: U.S. Geological Survey Open-File Report 03-095, 579 p., 1 sheet, scale 1:750,000 [numbered references are in our fault attribute table].
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| 45 | Faults digitized from the Oregon State map (reference #8) that cut a Quaternary (or possibly Quaternary) unit.
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| 46 | Faults digitized from the Oregon State map (reference #8) that bound a Quaternary (or possibly Quaternary) unit.
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| 47 | Clear continuation of a recognized active (or possibly active) fault.
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| 48 | Clearly part of a recognized active (or possibly active) fault zone.
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| 49 | May cut a Quaternary unit and appears to deflect a river course.
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| 50 | Has obvious geomorphic expression, but encounters no Quaternary units.
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| 51 | Has obvious geomorphic expression and kinematic relationship to other faults inferred to be active.
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| 52 | Possible buried fault, defined by aligned volcanic vents.
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| 53 | Same as reference #51, but trace taken from reference #8.
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