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Lahars and rhyolite, Challis Volcanics, Idaho
Lahars and rhyolite in Eocene Challis Volcanic Group along Salmon River, US93 north of Challis, Idaho. (200611-55)
Download ImageLahar deposit, Challis Volcanics, Idaho
Lahar deposit in Eocene Challis Volcanic Group along Salmon River, US93 north of Challis, Idaho. (200611-52)
Download ImageEocene Challis Volcanics, Idaho
Tuff and rhyolite of Eocene Challis Volcanic Group along Salmon River, US93 north of Challis, Idaho. (200611-46)
Download ImageEocene Challis Volcanics, Idaho
Tuff and rhyolite of Eocene Challis Volcanic Group along Salmon River, US93 north of Challis, Idaho. (200611-40)
Download ImageMetasedimentary Swauger Fm, Idaho
Tilted metasedimentary rock of Mesoproterozoic Swauger Formation along US93 south of Salmon, Idaho. (200611-36)
Download ImageMetasedimentary Swauger Fm, Idaho
Tilted metasedimentary rock of Mesoproterozoic Swauger Formation along US93 south of Salmon, Idaho. Salmon River in foreground. (200611-32)
Download ImageAsh flow tuff in Challis Volcanics, Idaho
Ash flow tuff capping mesa along Salmon River and US 93 near Elk Bend, Idaho. Eocene Challis Volcanic Group, Idaho (200611-26)
Download ImageSwauger 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 Image
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