Campground · WY
SIBLEY LAKE
SIBLEY LAKE is generally hard to book. Across the 4 months we have reservation data for, difficulty peaks in June (9/10) and eases to its lowest in September (7/10). The heat strip below breaks down every month — pick one for its full odds, lead-time chart, and easier nearby alternatives.
Booking difficulty by month
Midweek tip: in the busiest month (June), arrivals are lightest on Wednesday — shift your dates to improve your odds.
When reservations open
Booking window
Reservations open on a rolling 6-month window at 7:00 AM America/New York.
For example, sites for April 15, 2027 become bookable on October 15, 2026. Set a reminder a few minutes before release for the best shot.
Standard Recreation.gov 6-month rolling window: sites become bookable 6 months before arrival at 7:00 AM ET.
Sites & amenities
- 14 electric sites
- 1 tent-only sites
- 24 RV sites
- Max RV length 85 ft
Activities: WILDLIFE VIEWING, HIKING, FISHING, BOATING, BIKING, BIRDING, CANOEING, VISITOR CENTER
How much does it cost to camp at Sibley Lake Campground?
Two non-towed vehicles allowed per site. The first vehicle is included in the basic fee; the second vehicle will be charged an extra $11.00/day fee at the campground. Firewood bundles may be purchased from the campground host. There is an additional $5 fee for the Standard Electric sites. If an Access or Senior discount pass is applied, the total will become $18.08 per night which includes taxes.
Fee details as listed on Recreation.gov. Rates and passes change by season, so confirm the current price on Recreation.gov before you book.