Geology

Upsal Hogback

Churchill County, NV

Coordinate verified

Young phreatomagmatic tuff cone and basalt ridge north of Fallon in the Lahontan Valley, part of the same late Quaternary volcanic family as Soda Lakes. Geologists cite it as a <25 ka maar/tuff-cone complex built where magma met groundwater — a low, dark volcanic landform rising from the ancient lake basin floor.

Field facts

RegionChurchill County, NV
Coordinates39.6272, -118.8075
TypePhreatomagmatic tuff cone / basalt
Age< ~25,000 years
SettingLahontan Valley volcanic field
NearbyFallon / Soda Lake

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