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Swauger and Lawson Creek Formations, Idaho
Mesoproterozoic Swauger and Lawson Creek Formations forming cliffs along US 93 and the Salmon River, south of Salmon, Idaho (200611-14)
Download ImageMesoproterozoic Lemhi Group, Idaho
Mesoproterozoic Lemhi Group forming cliffs along US 93 south of Salmon, Idaho (200611-8)
Download ImageInclined anticline in Lemhi Group, Idaho
Inclined anticline in Mesoproterozoic Lemhi Group on US93 north of Carmen, Idaho (200611-5)
Download ImageCretaceous Conglomerate, Montana
Cretaceous Conglomerate of the Kootenai Formation, SW Montana. Beds are slightly overturned. (200610-77)
Download ImageUpright Isoclinal fold, Montana
Upright Isoclinal fold in the Permian Phosphoria Formation of the Fold-Thrust Belt, Montana (200610-47)
Download ImageCross-bedded sandstone (square)
Cross-bedded Cretaceous sandstone. Top to the right. Kootenai Formation, SW Montana (200610-33)
Download ImageSlickenlines on fault surface, Montana
Dip-parallel striations on slickensided fault surface (slickenlines), SW Montana. (200609-52)
Download ImageBasalt of Snake River Plain on Quartzite, Idaho
Buttress unconformity of basalt of Snake River Plain on Paleozoic Quartzite, Idaho (200608-60)
Download ImageBasalt of Snake River Plain on Quartzite, Idaho
Buttress unconformity of basalt of Snake River Plain on Paleozoic Quartzite, Idaho –along US26-US93 (200608-58)
Download ImageBasalt of Snake River Plain on Quartzite, Idaho
Buttress unconformity of aa basalt of Snake River Plain on Paleozoic Quartzite, Idaho (200608-58)
Download ImageSouthern Bitterroot Range, Idaho
Scott Peak (left) and Heart Mountain (right) of the southern Bitterroot Range, Idaho, as seen from ID State Hwy 22. (200608-30)
Download ImageGranitic rock, southern Idaho
Granodiorite of southern part of Cretaceous Idaho Batholith–as seen along US20, southern Idaho (200608-4) granite
Download ImageCoffee Pot cinder cone, Oregon
Coffee Pot cinder cone, Jordan Craters Lava field, eastern Oregon (200607-169)
Download ImageLake bed deposits, eastern Oregon
Bluffs of Miocene-Pliocene lake and river deposits near Rome, Oregon. (200607-161)
Download ImagePahoehoe lava, Oregon
Holocene Pahoehoe basalt at Diamond Craters, Oregon (200607-123)
Download ImagePahoehoe lava, Oregon
Holocene Pahoehoe basalt at Diamond Craters, Oregon (200607-122)
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Pahoehoe basalt, Oregon
Pahoehoe lava, erupted on the edge of the ~7500 year old Diamond Craters Lava field, Oregon. (200607-108)
Download ImagePit crater, and pahoehe basalt, Oregon
Pit crater, formed by collapse, on the edge of the ~7500 year old Diamond Craters Lava field, Oregon. Pahoehoe basalt in the foreground. (200607-96)
Download ImagePahoehoe basalt, Jordan Craters, Oregon
Pahoehoe basalt and scoria, Jordan Craters, Oregon (200607-86)
Download ImageWelded tuff and Owyhee River, Oregon
Miocene Tuff of Birch Creek and Owyhee River, Oregon (200607-58)
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