Oregon /
Prineville Reservoir
Reservoir in Oregon · 3,075 acres · near Prineville
Prineville Reservoir has 5 boat ramps listed as public.
Oregon Health Authority has a harmful algae precaution for this water (September 30, 2026). Water monitoring has confirmed that the level of cyanotoxins in Prineville Reservoir are below recreational guideline values for people. However, levels detected are still above OHA’s educational guideline values for dogs, and owners should keep their pets away from areas with blooms. Initial advisory was issued July 27th. Avoid contact with discoloured water or scum, and keep pets and children out of it.
Oregon Health Authority · checked October 18, 2026
Harmful algal blooms reported on this water (state reports compiled by U.S. EPA): 2025 and 2026.
state reports compiled by U.S. EPA · checked October 18, 2026
Lake level: Prineville Reservoir
Today's level loads here; without it, see the agency's page below.
Level from Bureau of Reclamation, Reclamation Information Sharing Environment (RISE) (Prineville Reservoir and Arthur R. Bowman Dam), daily; the agency's page. Levels change; check conditions at the ramp before you launch.
Boating rules
- SNW within 200 feet of the shore line and no towed watersports · 1 zone on Prineville Reservoir rule
- SNW within 200 feet of Jasper Point boat ramp · 1 zone on Prineville Reservoir rule
- SNW within 200 feet of County boat ramp · 1 zone on Prineville Reservoir rule
- SNW within 200 feet of State Park boat ramp · 1 zone on Prineville Reservoir rule
- SNW within 200 feet of Prineville Reservoir Resort boat ramp · 1 zone on Prineville Reservoir rule
- Between May 1 and October 1, within the marked area which encompasses the Prineville Reservoir State Park Marina and extends across the reservoir to the opposite shore to encompass the Robert's Bay boat launch, with the southern boundary of the area beginning at a point on the shore 200 feet to the southwest of the marina, and extending across the reservoir to a point on the shore 200 feet to the southwest of the boat launch, and the northern boundary beginning at a point on the shore 200 feet to the northeast of the marina, and extending across the reservoir to a point on the opposite shore 200 feet to the northeast of the boat launch. · 1 zone on Prineville Reservoir rule
- 5 mph within 200 feet of a marked swimming area · 1 zone on Prineville Reservoir rule
- All boats prohibited within marked swim area · 1 zone on Prineville 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
- County Boat Ramp Day Use · Boat ramp · near Prineville · free
- Jasper Point Day Use Ramp · Boat ramp · near Prineville · free Closed
- Powderhouse Cove · Boat ramp · near Prineville · free
- Prineville Reservoir State Park · Boat ramp · near Prineville · free
- Roberts Bay West · Boat ramp · near Prineville · free
Community
Where people who fish, boat and paddle Prineville Reservoir talk about it. Lake associations, clubs and local groups will be added as we find them.
Wikidata: Q7245210