Alder Thicket Cg
Closed — Closed for the season. Forest Service Road 40 is closed December 1 through March 31 for snowmobile trails. The campground typically reopens in late May and operates through October or November depending on weather conditions.
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.
Aquatic Invasive Species
This Order prohibits 1) possessing, storing, or transporting any aquatic invasive animal species AND 2) prohibits possessing, storing, or transporting any aquatic or riparian invasive plant species - on National Forest System lands in the Pacific Northwest Region as specified in the Order.
Restrictions on Use of Forage and Mulch Products
This Order prohibits unloading, storing, or using any straw, hay, grain, seed, or other forage or mulch products that are not state-certified weed free on the National Forest System lands, roads or trails in any Closure Area as specific in the Order. Some examples of these include hay bales, hay…
Fireworks and Explosives are always Prohibited
Fireworks and explosives (including explosive targets) are always prohibited on national forest lands. The prohibition of fireworks and exploding targets on national forest system lands is part of a set of permanent fire safety regulations in the Code of Federal Regulations (CFR), listed below.…
Road and Campground Closure - Tucannon Area
The Umatilla National Forest has temporarily closed four roads and other recreation sites on the Pomeroy Ranger District due to unsafe driving conditions caused by the recent rainfall and river flooding. Forest Service Road (FSR) 47 has been closed at the junction of the Tucannon Fish Hatchery to…
Use of Vehicles - Asotin Winter Ranger Closure
The Asotin Winter Range Area Closure prohibits the possession or use of a vehicle off National Forest System Roads and using any type of vehicle prohibited on National Forest System Roads within specific boundaries.
Seasonal Use of Motorized Vehicles - Meacham Divide Nordic Area
Seasonal use of motorized vehicles on and off national forest system roads located in the Meacham Divide Nordic Area. This Forest Order is effective January 22, 2026, through January 1, 2028.
Seasonal Use of Motorized Vehicles - Horseshoe Prairie Nordic Area
Seasonal use of motorized vehicles on and off national forest system roads located in the Horseshoe Prairie Nordic Area. This Forest Order is effective January 22, 2026, through January 1, 2028.
Seasonal Use of Motorized Vehicles - Andies Prairie Snow Play Area
Seasonal use of motorized vehicles on and off national forest system roads located in the Andies Prairie Snow Play Area. This Forest Order is effective January 22, 2026, through January 1, 2028.
Use of Motorized Vehicles - Spout Springs Ski Area
Use of motorized vehicles on and off National Forest System Roads and Trails located in the Spout Springs Ski area. This Forest Order is effective January 22, 2026, through January 1, 2028.
Use of Motorized Vehicles - Bluewood Ski Area
Use of motorized vehicles on and off National Forest System Roads and Trails located in the Bluewood Ski Area. This Forest Order is effective January 22, 2026, through January 1, 2028.
Speed Limit Adjustment on Forest Service Roads 40 and 42
Speed Limit Adjustment on Forest Service Roads (FSR) 40 and 42 on the Pomeroy Ranger District. This Forest Order is effective September 4, 2025, through August 31, 2027.
Wake and Personal Watercraft Prohibition on Olive Lake
Wake and personal watercraft prohibition for Olive Lake. This Forest Order is effective August 26, 2026, through August 26, 2028.
Occupancy and Use in the Umatilla NF Wilderness Areas
Prohibitions for occupancy and Use in the Umatilla NF Wilderness Areas including storing equipment, personal property or supplies, possessing or using a wagon, cart or other vehicles, riding, and more. This Forest Order is effective August 21, 2025, through August 31, 2027
Spout Springs Ski Area Information
Spout Springs Ski Area will be closed for the 2025-2026 season. The Forest Service is looking for an operator to provide professional management and operational oversight at Spout Springs. The operator will be responsible for all aspects of resort management, including but not limited to: hiring…
Mill Creek Municipal Watershed Closure Area
A special closure area for the Mill Creek Municipal Watershed that prohibits going into or being upon the described area. This closure is in place for the protection of public health and safety. This Forest Order is effective November 19, 2024, through November 19, 2026.
14 Day Stay Limit
Camping on the Umatilla, Wallowa-Whitman, and Malheur National Forests for a period longer than 14 days within any 30-day period is prohibited. This Forest Order is effective July 14, 2023, through July 20, 2026.
Panjab Trail #3127 bridge temporarily removed
Forest Service Officials have temporarily removed the Panjab Trail #3127 bridge to proactively mitigate potential post-fire debris flows that could damage the bridge this winter or next spring. The area experienced a runoff event in the spring of 2022, which created debris slides down Panjab…
Over-snow Vehicle Restrictions
Prohibitions on over-snow vehicle restrictions including operating or possessing an over-snow vehicle with a body width greater than 60 inches, operating an over-snow vehicle on Forest Service system roads or trails located on the Umatilla NF from April 1st to December 31st, and operating an…
About
Welcome to the northern gateway into the Blue Mountains. Alder Thicket Campground is located just three miles into the Blues along Forest Service Road 40, accessible via a scenic drive from Pomeroy, Washington. The campground features overgrown trees and tall alder shrubbery that provide ample shade during hot summer days, creating habitat for grouse and white-tailed deer. This small, rustic campground operates on a first-come, first-served basis with no fees required. Basic amenities include vault toilets and picnic tables at each site, though campers must bring their own water as no potable water is available on-site. The campground's location makes it an ideal starting point for exploring the surrounding Umatilla National Forest, with hiking trails accessible within five miles and the historic Clearwater Guard Station just six miles away. During winter months, Forest Service Road 40 is closed for snowmobile use, and the campground serves as a rest stop for snowmobilers rather than a camping destination. The area offers a peaceful mountain camping experience for those seeking a quiet retreat in the Blue Mountains.
Directions
From Pomeroy, take 15th Street south for approximately 17 miles to the forest boundary. The paved road turns to gravel and becomes Forest Service Road 40. Continue on Road 40 for approximately 3 miles. Alder Thicket Campground will be on the right.
Nearby Campgrounds
Location
Amenities
| Water | No |
| Fires Allowed | Yes |
| Toilets | Yes |
| Dump Station | No |
| Wifi | No |
| Pets Allowed | Yes |
| Showers | No |
| Electric Hookups | — |
| Water Hookups | — |
| Sewer Hookups | — |
| Camp Store | No |
| Price | $0 |
Vehicle
| Max RV Length | — |
| Max Trailer Length | — |
| Big Rig Friendly | No |
| Pull Through Sites | — |
Contact
| Phone | +1 (541) 278-3716 |
Cell Service
| AT&T | None |
| Verizon | None |
| T-Mobile | None |
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