Deschutes & Ochoco National Forests
Crooked River National Grassland

Oregon Volcanoes

Diamond Craters Volcanic Field

SUMMARY

Type: volcanic field
Activity: extinct
Last Eruption: less than 60,000 years ago
Rock Type: basalt
Eruptive Volume: ?
Latitude: 43.10 N
Longitude: 118.75 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:

The Diamond Craters field is a large shield of basalt lava flows with a summit collapse area filled with many explosion craters. The distal, low gradient areas of the flows contain many excellent examples of inflated lavas.

HISTORIC ACTIVITY:

• None

DATA SOURCE:

• Chitwood, 1994
• Peterson and Groh, 1964

ADDITIONAL INFORMATION

• Link to VolcanoWorld's Diamond Craters Info