|Latitude & Longitude (WGS84):||39° 39' 23'' North , 107° 42' 18'' West|
|Latitude & Longitude (decimal):||39.65665,-107.70504|
|Köppen climate type:||Dfb : Warm-summer humid continental climate|
Ref.: Eckel, Edwin B. (1997), Minerals of Colorado, updated & revised: 16. Located on East Rifle Creek about 13 mi northeast of Rifle; access is by state highway 13 for 3 mi north of Rifle, then northeast on state highway 325 past the Rifle Gap Reservoir. On the West side of East Rifle Creek in SW ¼ sec. 34 and SE ¼ sec. 33, T. 4 S., R. 92 W.
20 valid minerals.
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
|Late Jurassic - Late Triassic|
145 - 237 Ma
|Morrison, Curtis, Entrada, and Glen Canyon Fms|
Age: Mesozoic (145 - 237 Ma)
Stratigraphic Name: Morrison Formation; Curtis Formation; Entrada Sandstone; Glen Canyon Formation
Description: Curtis is absent along Grand Hogback
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. 
|Early Jurassic - Late Triassic|
174.1 - 237 Ma
|Mesozoic sedimentary rocks|
Age: Mesozoic (174.1 - 237 Ma)
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.