State Park
Mann Lake Recreation Site
Steens Mountain Cooperative Management and Protection Area · Diamond, OR
Verify with the state park system
State parks set their own rules and reservation systems. Fire bans, road closures, and operating dates change seasonally — check the state park website before traveling.
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Official sources & verification
Managed by State Park
Reserve or permit
- Reserve a site
Book a site directly with the operator.
Managing agency
- Steens Mountain Cooperative Management and Protection Area — official page
Park unit page with alerts and visitor information.
Verify by phone or mail
- Address:Diamond, OR
About
Overview: Located below the east face of Steens Mountain, Mann Lake attracts anglers as much for its remote, rugged splendor as for its abundant Lahontan cutthroat trout. These trout are supremely adapted to survive alkaline desert waters and without them fisheries like Mann Lake could not exist. The lake was named for an early rancher and has satisfied fishers for over forty years. Anglers converge as early as March and into October. Shallow throughout its 200 acres, the lake features extensive weed beds and great shorelines for wading. Know Before You Go: Aside from two vault restrooms, Mann Lake offers no amenities. Bring your own shade, shelter and water and tie everything down. Swift winds are common, and weather conditions are often unpredictable. Two, eight-inch minimum length trout per day limit; artificial flies and lures only. Point of Interest: Aside from fishing, visitors enjoy camping, hiking, viewing wildlife such as pronghorn antelope, quail and chukar, and rock hounding for thunder eggs and agates in the area. Mann Lake Brochure
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Amenities
Flush Toilets
Fire Rings
Pet Policy
Pets allowed on leash
Campground Rules
- Campfires generally permitted — verify current fire restrictions before lighting
Within ~30 miles
Trails near Mann Lake Recreation Site
Trail
Steens Mountain Summit
Oregon
0.9 mi282 ftgain
Easy
Trail
Wildhorse Lake Trail from Steens Summit Road
Oregon
2.5 mi1,276 ftgain
Moderate
Trail
Pike Creek Canyon Trail
Oregon
5.6 mi2,172 ftgain
Difficult
Trail
Big Indian Gorge Trail to Little Blitzen Loop
Oregon
25.6 mi6,158 ftgain
Expert
Trail
Big Indian Gorge Trail
Oregon
16.9 mi2,615 ftgain
Expert
Trail
Frenchglen Warm Spring Trail
Oregon
3.0 mi128 ftgain
Easy
Hunt context
Hunting unit around this campground
During hunting seasons, wear blaze orange and check regulations — see the Oregon hunting page
Nearby Campgrounds
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