Missouri Ridge – State Wildlife Action Plan

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Geographic boundaries of the COAs were updated for the 2026 State Wildlife Action Plan and the associated COA profiles are intended to provide additional information. Content of each COA profile is being refined and will be updated to reflect current conditions when feasible. Please help us by submitting information on Local Conservation Actions, Plans, or Potential Partners to: OCS.revision@odfw.oregon.gov.

The Missouri Ridge COA (6 mi²) is located between Scotts Mills and Molalla in the Rock Creek subbasin, a tributary of the Pudding River. This COA is adjacent to the Molalla River COA.

Recommended Conservation Actions

Work with collaborators and private landowners to minimize habitat loss, especially in relation to potential effects of climate change.
Work with collaborators to minimize habitat loss, especially in relation to potential effects of climate change.

Local Conservation Actions and Plans

Potential Partners

Special Features

General

This COA contains multiple tributaries of the Pudding River, including Garrett Creek and Comer Creek.
This COA consists primarily of small private properties, with a mix of shrubland, woodland, and mixed conifer deciduous forest.

Protected Areas

Garret Creek
Wilhoit Springs Park

Previous COA Associations

Size Change from 2016 boundaries: -6.0 mi²(50% decrease)

Ecoregions

Willamette Valley

The Willamette Valley ecoregion is bounded on the west by the Coast Range and on the east by the Cascade Range. This long mostly level alluvial plain has some scattered areas of low basalt, and contrasts with productive farmland and large urban areas. It has the fastest-growing human population in the state resulting in challenges due to land-use changes.

Key Habitats

Grasslands

Grasslands include a variety of upland grass-dominated habitats, such as upland prairies, coastal bluffs, and montane grasslands.

Example of Oak Woodlands, which is a Strategy Habitat within the State Wildlife Action Plan

Oak Habitats

There are several oak habitat types in Oregon, where oaks comprise most of the canopy. These can include oak woodlands, oak forest, oak chaparral, and riparian oak. Oak savanna is covered in the Grasslands Key Habitat. Oaks may also co-dominate a canopy in oak/fir, oak pine, and oak hardwood habitats.

Flowing Water and Riparian Habitats

Flowing Water and Riparian Habitats include all naturally occurring flowing freshwater streams and rivers throughout Oregon as well as the adjacent riparian habitat.