Fee: Discover Pass required: $10 day / $45 annual. Other fees: watercraft launch $7/day; trailer dump $5/use; overnight unattended vehicle $10/night. Reservations: Washington State Parks reservation system
About this park
Alta Lake is a camping and day-use park where mountainous pine forests meet the desert. The two-mile lake offers trout fishing, water skiing and windsurfing in summer. The park is open in summer from 6:30 a.m. to 10 p.m. and closes Nov. 1 through March 30.
Alta Lake State Park FAQ
Where is Alta Lake State Park located?
Alta Lake State Park is in Pateros, Washington, at 1B Otto Road. GPS coordinates: 48.02828, -119.93785. Get directions.
Is there an entrance fee at Alta Lake State Park?
Discover Pass required: $10 day / $45 annual. Other fees: watercraft launch $7/day; trailer dump $5/use; overnight unattended vehicle $10/night. Reservations: Washington State Parks reservation system. Fees can change by season, so confirm with the park before you go.
How do I contact Alta Lake State Park?
You can call (509) 923-2473. The park office can confirm RV site availability, hookups, length limits and current conditions.
Are there RV campgrounds near Alta Lake State Park?
Yes. The closest RV-friendly campgrounds listed on ParkedRV are:
- Lake Creek Campground - Entiat River (27.5 mi, reservable)
- Tumwater Group Site (44.0 mi)
- Bridge Creek Group Site (50.6 mi, reservable)
How current is this information about Alta Lake State Park?
This listing was last updated on October 8, 2026. If something is out of date, let us know and we'll fix it.