Oregon /
Thief Valley Reservoir
Reservoir in Oregon · 637 acres · near North Powder
Thief Valley Reservoir has 1 boat ramp listed as public.
Past algal blooms
Harmful algal blooms reported on this water (state reports compiled by U.S. EPA): 2024 to 2026.
state reports compiled by U.S. EPA · checked October 18, 2026
Boating rules
- All boats prohibited within 700 feet of Thief Valley Dam as marked · 1 zone on Thief Valley Reservoir rule
From the boating rules map of Oregon State Marine Board (rules zones joined to our waters and launches; not endorsed by OSMB), read October 18, 2026. A map of rules is a guide: the regulation's text and the posted signs govern.
Launches
- Thief Valley County Ramp · Boat ramp · near North Powder · free
Community
Where people who fish, boat and paddle Thief Valley Reservoir talk about it. Lake associations, clubs and local groups will be added as we find them.
Wikidata: Q7347032