Devils Garden
Volcanic field in United States
Key Facts
Elevation
1,698 m (5,571 ft)
Type
Volcanic field
Location
43.512°, -120.861°
Region
High Lava Plains Volcanic Province
Rock Type
Basalt / Picro-Basalt
Tectonic Setting
Rift zone
Location
Loading map...
Overview
The Devils Garden lava field, the NW-most of a group of three youthful-looking basaltic lava fields SE of Newberry volcano, east of the Cascade Range, contains 117 km2 of overlapping pahoehoe lava flows erupted from fissure vents at the NE part of the field. Inflated pahoehoe flows were erupted from spatter ramparts and spatter cones onto a nearly flat-lying surface surrounding several large kipukas of older rocks. The extremely fluid and inflated lavas left flows that typically increased from about a half meter thickness near the vent to about 5 m in more distal areas and have a volume of 1.
2 km3. The flows are older than the Mazama Ash (6,800 years old) but are fresh-looking and relatively unvegetated. The precise age of Devils Garden is not known, but was considered to be either Holocene (Smith et al.
1978; Sarna-Wojciki et al. 1983) or about 20,000 years old (Chitwood 1994).
Volcanic Hazards & Risk Assessment
Primary Hazards
Risk Level
Geological Composition & Structure
Rock Types
Tectonic Setting
Age & Formation
Eruption Statistics & Analysis
| Metric | Value | Global Ranking | Significance |
|---|---|---|---|
| Total Recorded Eruptions | Unknown | Low | Moderately active volcano |
| Maximum VEI | VEI Unknown | Minor | Local impact potential |
| Recent Activity | Unknown | Historical | Historically active |
Monitoring & Alert Status
Monitoring Networks
Current Status
Nearby Volcanoes in North America Volcanic Regions
Quick Info
- •Smithsonian ID: 322120
- •Evidence: Evidence Uncertain
- •Epoch: Holocene
About the Photo
The Blowouts, the spatter vents in the foreground, are the source vents of the voluminous Devils Garden lava field. Devils Garden is the NW-most of a group of three lava fields SE of Newberry volcano and contains 117 km2 of overlapping pahoehoe lava flows erupted from fissure vents at the NE part of the field. The extremely fluid and inflated pahoehoe lavas typically left flows that increase from about a half meter thickness near the vent to about 5 m in the distal portion. The lava flows are either late Pleistocene or early Holocene in age.
Photo by Lee Siebert, 2000 (Smithsonian Institution).
Authority Sources
Related Volcanoes
Basic Information
This page shows basic data from the Smithsonian Global Volcanism Program. For more detailed information, visit the official Smithsonian page.