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MAP

Topo

Rock Formations

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Topo

Ecoregions

Public Lands

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BASEMAPS

Default Weather

Temperature

Smoke

...

WEATHER

Granitic rocks of 1700-m.y. age group (COXg;0)

Geologic Formation in CO, UT, WY

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Lithology

Granite

Granodiorite

Geologic Age

Paleoproterozoic (2500 Ma – 1600 Ma ago)

Geologic Unit Label

Xg

Includes Boulder Creek -M.Y. AGE GROUP (AGE 1650-1730 M.Y.)–Includes Boulder Creek, Cross Creek, Denny Creek, Kroenke, Browns Pass, Powderhorn, Pitts Meadow, Bakers Bridge, and Tenmile Granites, Quartz Monzonites, or Granodiorites; also, unnamed granitic rocks

— USGS

Taxonomy

Classified As

Geologic Formation