Mallard Marsh Campground
Currently closed for the season. Tentative opening is May 29, 2026, with operations running through September 27, 2026 at noon. Stage 1 fire restrictions are in effect across Deschutes National Forest.
Air Quality Alert issued August 3 at 12:05PM PDT by NWS Pendleton OR
Oregon Department of Environmental Quality has issued an Air Quality Advisory until further notice. For the Smoke Air Quality Advisory, wildfires burning in the region combined with forecasted conditions may cause air quality to reach unhealthy levels. Pollutants in smoke can cause burning eyes, runny nose, aggravate heart and lung diseases, and aggravate other serious health problems. Limit outdoor activities and keep children indoors if it is smoky. Please follow medical advice if you have a heart or lung condition. For additional information...please visit the Web site at http://www.oregon.gov/DEQ
Air Quality Alert issued August 5 at 2:33PM PDT by NWS Pendleton OR
Oregon Department of Environmental Quality has issued an Air Quality Advisory until further notice. For the Smoke Air Quality Advisory, wildfires burning in the region combined with forecasted conditions will cause air quality to reach unhealthy levels. Pollutants in smoke can cause burning eyes, runny nose, aggravate heart and lung diseases, and aggravate other serious health problems. Limit outdoor activities and keep children indoors if it is smoky. Please follow medical advice if you have a heart or lung condition. An Air Quality Advisory for elevated levels of ozone pollution, or smog, is in effect for Hermiston in Umatilla County. Ozone pollution is expected to reach levels that could be unhealthy for sensitive groups, including children, pregnant people, older adults and people with heart or respiratory conditions. DEQ expected the Air Quality Advisory to last until 10 p.m. on Thursday, Aug. 6, 2026. For additional information...please visit the Web site at http://www.oregon.gov/DEQ
Alcohol Prohibitions
This Order describes acts that are prohibited upon lands, roads and trails within the National Forest System administered by the Forest Service Pacific Northwest Region in regards to alcoholic beverages.
About
Mallard Marsh Campground occupies a scenic position on Hosmer Lake's reed-lined northern shore within Deschutes National Forest. The shallow, crystal-clear lake is managed as fly-fishing-only waters, harboring Atlantic salmon, brook trout, and rainbows that are easily spotted from the surface. Paddlers and anglers enjoy unobstructed views of Mt. Bachelor, South Sister, and Broken Top reflected in the water. The campground offers 14 standard nonelectric sites, each equipped with a picnic table and fire ring with grill. Vault toilets are provided, but there is no potable water, so campers must pack in their own supply. Maximum site spur length is 40 feet, limiting the campground to smaller RVs and trailers. A hardened boat ramp is located at nearby South Campground. Beyond fishing and paddling, visitors can access nearby trails for hiking and horseback riding. The campground sits along the Cascade Lakes Scenic Byway, a 66-mile route weaving past volcanic peaks and alpine lakes. Reservations are made through Recreation.gov; maximum stay is 14 consecutive days.
Directions
From Bend, travel 35.5 miles southwest on Cascade Lakes Highway (Route 46), then 1.3 miles east on Forest Road 4625. South Campground appears first on the right; Mallard Marsh is just beyond.
Location
Amenities
| Water | No |
| Fires Allowed | Yes |
| Toilets | Yes |
| Dump Station | — |
| Wifi | No |
| Pets Allowed | — |
| Showers | No |
| Electric Hookups | — |
| Water Hookups | — |
| Sewer Hookups | — |
| Camp Store | No |
| Price | $24 |
Vehicle
| Max RV Length | 40ft |
| Max Trailer Length | 40ft |
| Big Rig Friendly | No |
| Pull Through Sites | No |
Contact
| Phone | +1 (541) 383-5300 |
Cell Service
| AT&T | Yes |
| Verizon | Yes |
| T-Mobile | Yes |
Availability
Photos
Community Posts
No posts yet. Be the first to share your experience!