The Okanogan Basin Monitoring and Evaluation Program (OBMEP) is a monitoring program created in 2004 that collects long-term data on summer steelhead and spring Chinook salmon in the Okanogan River Basin.

The four primary goals of OBMEP are:

• To establish the current status of anadromous fish habitats and fish populations.
• To establish how the status is changing over time.
• To establish what effects restoration actions are having on fish populations and habitat conditions.
• To establish what effects fishery management actions are having on fish populations.

OBMEP is a program within the Confederated Colville Tribes' Fish and Wildlife Department and is funded primarily by the Bonneville Power Administration through the Columbia Basin Fish Accords.