Archives: COAs

Warner Basin Wetlands

By

Encompassing Warner Valley and associated wetlands, this COA stretches from just above Blue Joint Lake in the north to the Oregon/Nevada border in the south, and includes the Rahilly-Gravelly Research Natural Area, the Fish Creek Rim Research Natural Area, and the Warner Wetlands Area Of Critical Environmental Concern.

Warm Springs River

By

Area includes the Warm Springs River (a tributary to the Deschutes River) and surrounding habitat. River flows eastward with headwaters in the Cascade Crest

Walla Walla Headwaters

By

This COA is mainly located within the Blue Mountains ecoregion of Umatilla, Union, and Wallowa Counties, but enters into a small section of the Columbia Plateau ecoregion along its northwest corner. Characterized by extensive mixed conifer forest, this rugged landscape also contains important native perennial grasslands, abundant springs, and abuts the North Fork Umatilla Wilderness …

Upper South Fork Malheur Area

By

This COA straddles US Highway 78 southeast of Malheur Lake and provides connectivity between the Crowley (185) COA, Ten Cent Lake-Juniper Lake Area (193) COA, and the Steens Mountain High Lava Plains (192) COA. North of US Highway 78 the COA includes Malheur Cave and a section of South Fork Malheur River. South of 78 …

Upper Siuslaw

By

Follows the windy Siuslaw River and surrounding habitat. Area builds from the Siuslaw Estuary COA to the west and extends east towards Cottage Grove.

Upper Silvies River

By

Includes significant stretch of the Silvies River and surrounding habitat. Spans Blue Mountains (bounded at the north by the town of Seneca) and Northern Basin & Range Ecoregion (starting at Malheur Lake to the south), passing through the town of Burns

Upper Klamath Lake Area

By

Includes Upper Klamath Lake, the largest freshwater lake west of the Rocky Mountains. Area includes surrounding habitat to the north and adjacent to the Sky Lakes area