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Oroville, Butte County, California, Earthquakes. Oroville cemetery gravestone rotated on its base by the quake series of August 1975. 1975. Page 3, Earthquake Information Bulletin, v.7, no.5.
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Two types of refractory clayrock from the Van Bibber Shale Member of the South Platte Formation. Refractory claystone from the Helmer Claystone bed. Douglas County, Colorado. 1952. Published as plate 3-B in U.S. Geological Survey. Bulletin 1102. 1961.
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Foothills west of difficulty showing Casper formation to right, Satanka shale, Forelle limestone, and shale, Gypsum and limestone breccia to left of Forelle limestone. Southern Wyoming. June 1922.
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Polished pebbles and cobbles from the mudstone unit of the Lakita Formation. A, silicified wood; b, fossiliferous chert; c, quartzsite; d, and e, chert; f, chert pebble imbedded in clayey siltstone. Crook County, Wyoming. 1956. Published in US Geological Survey Bulletin 1082-J, plate 39. 1961.
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New York. Looking eastward from Queenston Heights, Canada. The Niagara River, in the foreground, is spanned by the ruins of an old suspension bridge. The piers of this bridge stand on the quartzose sandrock of the Medina Formation. On the slope below is the newly prepared grade of the Gorge Railroad. In the distance on the left is Lewiston; on the right, the Niagara escarpment. 1895.
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Canyon of North Platte River, one and one-half miles above Wendover, looking northwesterly, a characteristic view of the canyon, which has been cut in the rocks of the Hartville formation. Platte County, Wyoming. 1901. Figure 5 in U.S. Geological Survey. Folio 91. 1903.
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Small fault exposed just northeast of image 697, in limestone and shale of Maccrady formation in cliff west of Maccrady. Abingdon quadrangle. Virginia. No date.
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Distorted sun-cracked thin argillaceous reddish limestone beds in Moccasin formation south of Clinch River, at west edge of Abingdon quadrangle (B 18). Relief of curved plates one and one-half inch. Abingdon quadrangle. Virginia. No date.
    map background search result map search result map Canyon of North Platte River, one and one-half miles above Wendover. Platte County, Wyoming. 1901. Canyon of North Platte River, one and one-half miles above Wendover. Platte County, Wyoming. 1901.