48-55 Mine (Garnet Mine; Vesper Peak Mine), Vesper Peak, Sultan Basin, Sultan District, Snohomish Co., Washington, USA
|Latitude & Longitude (WGS84):||48° 1' North , 121° 31' West|
|Latitude & Longitude (decimal):||48.01667,-121.51667|
|Köppen climate type:||Cfb : Temperate oceanic climate|
Center of Section 9, T29N-R10E
A large skarn area, located 300' southwest of the Vesper Peak Ridge Crest.
It worked limestone lenses altered by contact metamorphism forming bodies up to 70' long by 50' wide. Developments include shallow opencuts.
19 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
|Middle Miocene - Early Paleocene|
11.62 - 66 Ma
|Tertiary granitic rocks|
Age: Cenozoic (11.62 - 66 Ma)
Comments: Chilliwack granodiorite and quartz diorite; Golden Horn batholith; Silver Star granodiorite; Snoqualmie granodiorite; Index batholith; Grotto batholith (possibly the same as Snoqualmie); Oval Peak batholith; Fawn Peak stock; Pasayten stock-dike; Monument Peak stock; Castle Peak stock; Lost Peak stock; The intrusive volcanic rocks near Bumping Lake include hypabyssal dacite, rhyolite, and andesite (Walsh and others, 1987).
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. 
23.03 - 33.9 Ma
|Squire Creek stock on Vesper Peak|
- Cannon, B. (1975): Minerals of Washington, p.52, 54, 99, 105, 108, 113, 137, 146, 152
- Rocks & Minerals (1991) 66: 478-484.