Davis Lake

Photo of this volcano
  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 43.57°N
  • 121.82°W

  • 2163 m
    7095 ft

  • 322100
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

The Global Volcanism Program has no activity reports for Davis Lake.

The Global Volcanism Program has no Weekly Reports available for Davis Lake.

The Global Volcanism Program has no Bulletin Reports available for Davis Lake.

Eruptive History


Summary of Holocene eruption dates and Volcanic Explosivity Indices (VEI).


Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
2790 BCE (?) Unknown Confirmed   Radiocarbon (uncorrected) S flank of Hamner Butte (Black Rock)

This compilation of synonyms and subsidiary features may not be comprehensive. Features are organized into four major categories: Cones, Craters, Domes, and Thermal Features. Synonyms of features appear indented below the primary name. In some cases additional feature type, elevation, or location details are provided.

Photo Gallery


A steep-sided, blocky andesitic lava flow from a cinder cone at the north end of Davis Lake is skirted by a road in Deschutes National Forest. This and two other nearby lava flows mark the only known Holocene eruptive activity in the Cascades between Mount Bachelor and Crater Lake.

Photo by Lee Siebert, 1982 (Smithsonian Institution).
See title for photo information.
The northernmost of the three Davis Lake lava flows originated from the forested cinder cone in the background. The blocky lava flow spread out over a broad area, creating a natural barrier that formed Davis Lake about 4740 years ago.

Photo by Lee Siebert, 1995 (Smithsonian Institution).
See title for photo information.
Three small cinder cones oriented along a N-S line produced large andesitic lava flows near Davis Lake. The northernmost flow formed the natural dam that created Davis Lake (right). Two other lava flows are located behind Hamner Butte in the background. The middle flow has been radiocarbon dated at about 4740 years ago, and the other two flows are considered to have been erupted at about the same time.

Photo by Lee Siebert, 1995 (Smithsonian Institution).
See title for photo information.
The middle of three cinder cones and flat-lying andesitic lava flows near Davis Lake is seen here from Black Rock Butte, the southernmost cinder cone, with the Pleistocene andesitic shield volcano of Hamner Butte in the background. The middle lava flow has a radiocarbon age of 4740 years. The cinder cone vent of the middle flow has a flat summit that has been quarried for road aggregate.

Photo by Lee Siebert, 1995 (Smithsonian Institution).
See title for photo information.
The southernmost of three blocky andesitic lava flows near Davis Lake originated from Black Rock Butte and banks up against the slopes of the Pleistocene andesitic shield volcano Odell Butte. The lava flow is considered to have erupted at about the same time as a nearby lava flow with a radiocarbon age of 4740 years.

Photo by Lee Siebert, 1995 (Smithsonian Institution).
See title for photo information.
The middle of three flat-lying andesitic lava flows erupted from vents near Davis Lake has been radiocarbon dated at 4740 years. The Pleistocene andesitic shield volcano Odell Butte is in the background, and the southernmost of the three lava flows can be seen in the distance below its left skyline.

Photo by Lee Siebert, 1995 (Smithsonian Institution).
See title for photo information.

Smithsonian Sample Collections Database


The following 1 samples associated with this volcano can be found in the Smithsonian's NMNH Department of Mineral Sciences collections. Catalog number links will open a window with more information.

Catalog Number Sample Description
NMNH 116702 Andesite

Affiliated Sites