Deschutes & Ochoco National Forests
Crooked River National Grassland

Oregon Volcanoes

Mt. McLoughlin Volcano

SUMMARY

Type: shield volcano
Activity: extinct?
Last Eruption: about 30,000 yrs ago
Rock Type: basaltic andesite and andesite
Eruptive Volume: 13 cu km
Latitude: 42.44 N
Longitude: 122.31 W
Location Maps: from TIGER Mapping Service

• State Level - shows state and communities
• County Level - shows county lines, highways, and communities
• Local Level - shows above plus lakes and local roads

Topo Map from TopoZone

GEOLOGIC BACKGROUND:

Mt. McLoughlin is a basaltic andesite cone built on top of a shield like many other Cascade peaks. 

HISTORIC ACTIVITY:

• None

DATA SOURCE:

• USGS

ADDITIONAL INFORMATION

• Link to U.S.G.S. - CVO's Mt. McLoughlin Info
• Link to U.S.G.S. Visit a Volcano Info for Mt. McLoughlin
• Link to VolcanoWorld's Mt. McLoughlin Info