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Landslide scar and drowned trees
Landslide scar and drowned trees, Earthquake Lake, Montana. The landslide blocked the Madison River to make the lake and drown the trees (SrA-19)
Download ImageTriangular facets, SW Montana
Triangular facets on east front of Tendoy Range, SW Montana. Triangular facets indicate recent uplift on faults. (SrA-20).
Download ImageFault scarp on alluvial fan
Fault scarp on Hanaupah alluvial fan, Death Valley National Park, California. (SrA-11)
Download ImageOwens Valley fault scarp, CA.
Fault scarp: Owens Valley fault, at base of Sierra Nevada, California. Scarp has formed over several earthquakes, most recently in 1872. (SrA-16)
Download ImageOwens Valley fault scarp, CA.
Owens Valley fault and Sierra Nevada Range, California. Scarp has formed over several earthquakes, most recently in 1872. (SrA-17)
Download ImageFaulted edge of Death Valley, (vertical)
In Death Valley National Park, California, the Black Mountains rise abruptly along a fault zone, shown in this aerial photo. Note the alluvial fans that grade into the Salt pan along the front. (SrA-14)
Download ImageOwens Valley and Sierra Nevada
The Sierra Nevada rises along a series of normal and strike-slip faults in the Owens Valley of California to mark the eastern edge of the Sierra Nevada. This fault last slipped during the M7.4 Owens Valley Earthquake of 1872. Note the cinder cone–several recent basaltic lava flows have erupted along the trace of the fault. (SrA-15).
Download ImageFaulted colluvium (vertical)
Faulting in colluvium along North Branch of the San Andreas fault, San Bernardino Mtns. (ID: SrA-05)
Download ImageUplifted shorelines, SE California.
Uplifted shorelines, Panamint Valley, California. (SrA-12)
Download ImageFault scarp and alluvial fan
Fault scarp and alluvial fan, Death Valley National Park, California. (SrA-10)
Download ImageWineglass Canyon, Death Valley, CA.
Wineglass Canyon and Black Mountains frontal fault zone, Death Valley National Park, California. (SrA-08)
Download ImageWineglass Canyon, Death Valley, CA.
Aerial view of wineglass Canyons and fault-controlled mountain front, Death Valley National Park, California. Wineglass canyons, named for their steep, narrow mouths and broader, gentler upper reaches, (they look a little like wineglasses) indicate recent uplift activity on the bounding fault zone. Faulting continually uplifts the front of the canyon, so that erosion does not have time to widen it. Consequently, the canyon mouth retains a steep and narrow shape. (ID: SrA-06)
Download ImageTrench with shoring (vertical)
Geologist working in a trench across the San Andreas fault near Wrightwood, California. (SrA-04)
Download ImageShale outcrop, northern Montana
Shale of the Proterozoic Snowslip Formation (Belt Supergroup) in Glacier National Park, Montana. (Sed-57)
Download ImageSan Andreas fault and shutter ridge, Cal.
View of San Andreas fault from Keyes View in Joshua Tree National Park. The large valley in this photo is the Coachella Valley; the linear ridge in the middle of the photo is a shutter ridge; the fault runs right along the base of the ridge. (SrA-01)
Download ImageSan Andreas fault, Pt. Reyes, California
Aerial view of trace of San Andreas fault. Tomales Bay and Pt. Reyes Peninsula, California (SrA-02)
Download ImageGlacial Lake, Colorado (Pan)
Skypond, a glacial lake in Rocky Mountain National Park, Colorado. (ID: Skypond)
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Seven Devils range, Idaho (Pan)
Seven Devils range, Idaho, considered to be part of Wrangellia, an accreted terrane. (ID: SevenDevilspan)
Download ImageRibbon chert and interbedded shale
Ribbon (radiolarian) chert and interbedded shale, Oregon. (Sed-55)
Download ImageGlacial Dropstone
Glacial dropstone in Proterozoic diamictite of Kingston Peak Formation, SE California. (Sed-49)
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