Skip to main content
Advanced Search

Filters: Tags: Colorado Bulletin 510 (X) > Date Range: {"choice":"year"} (X) > Types: OGC WFS Layer (X)

3 results (9ms)   

View Results as: JSON ATOM CSV
thumbnail
Hill consisting of Mancos shale near Delta, illustrating the barrenness of the shale slopes, and showing the occurrence of a zone of black shale about 300 feet above the base of the formation. Delta County, Colorado. 1907. Plate 4-A in U.S. Geological Survey Bulletin 510. 1912.
thumbnail
West slope of Grand Mesa, 2 miles north of Kahnah Creek, a characteristic exposure showing the slope of the mesa covered with brush except where a washout has exposed the rocks; Mancos shale; sandstone at the base of the coal measures; locality where fossil plants were collected. Mesa County, Colorado. 1907. Plate 3-A in U.S. Geological Survey. Bulletin 510. 1912.
thumbnail
A fossil plant (Ficus speciosissima Ward) associated with the low grade bituminous and subbituminous coals of the Grand Mesa field. A fossil leaf common in the Paonia shale member of the Mesaverde formation. Fossil plant locality record of the U.S. Geological Survey No. 4352 (slightly reduced) Gunnison County, Colorado. 1907. Plate 19 in U.S. Geological Survey. Bulletin 510. 1912.


    map background search result map search result map West slope of Grand Mesa: locality where fossil plants were collected. Mesa County, Colorado. 1907. Hill consisting of Mancos shale near Delta, illustrating the barrenness of the shale slopes. Delta County, Colorado. 1907. A fossil plant (Ficus speciosissima Ward) associated with the low grade bituminous and subbituminous coals of the Grand Mesa field. Gunnison County, Colorado. 1907. Hill consisting of Mancos shale near Delta, illustrating the barrenness of the shale slopes. Delta County, Colorado. 1907. West slope of Grand Mesa: locality where fossil plants were collected. Mesa County, Colorado. 1907. A fossil plant (Ficus speciosissima Ward) associated with the low grade bituminous and subbituminous coals of the Grand Mesa field. Gunnison County, Colorado. 1907.