Overland Mountain, Jamestown District, Boulder Co., Colorado, USA
Latitude & Longitude (WGS84): | 40° 7' 43'' North , 105° 25' 47'' West |
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Latitude & Longitude (decimal): | 40.12872,-105.42975 |
Köppen climate type: | BSk : Cold semi-arid (steppe) climate |
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Mineral List
1 valid mineral.
Regional Geology
This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.
Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org
Mesoproterozoic 1000 - 1600 Ma ID: 2912356 | Granitic rocks of 1400-m.y. age group Age: Mesoproterozoic (1000 - 1600 Ma) Stratigraphic Name: Silver Plume Granite; Sherman Granite; Cripple Creek Granite; St. Kevin Granite; Vernal Mesa Granite; Curecanti Granite; Eolus Granite; Trimble Granite Description: Includes Silver Plume, Sherman, Cripple Creek, St. Kevin, Vernal Mesa, Curecanti, Eolus, and Trimble Granites or Quartz Monzonites; also, San Isabel Granite of Boyer (1962) and unnamed granitic rocks Lithology: Major:{alkali feldspar granite,granite}, Minor:{quartz monzonite} Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052. [133] |
Paleoproterozoic 1600 - 2500 Ma ID: 3186950 | Paleoproterozoic crystalline metamorphic rocks Age: Proterozoic (1600 - 2500 Ma) Lithology: Orthogneiss/paragneiss Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154] |
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