Seattle Public Utilities Melina Thung, Interim Director

Rattlesnake Lake Recreation Area

  • SPU Wildland Fire TeamRattlesnake Lake

The Rattlesnake Lake Recreation Area is a day-use area located outside the hydrologic boundaries of the Cedar River Municipal Watershed near North Bend. The lake is located near Interstate 90, exit 32, about 3 miles southeast of North Bend and about 35 miles east of Seattle. The recreation area includes the 111-acre lake, picnic areas, the Rattlesnake Ledge Trail and parking access to miles of State Park and King County hiking, biking, and horse trails. The recreation area is owned and managed by Seattle Public Utilities as a non-development buffer to the protected municipal watershed lands. The watershed supplies 65% of the Seattle region’s unfiltered drinking water to nearly 800,000 people. Rattlesnake Lake is not used for drinking water and is spring-fed by the nearby Cedar River.

Important Notice: Leave your grills at home! A statewide burn ban is in effect. "Because of the onset of hot, dry weather across the state, DNR [Department of Natural Resources] today issued a statewide burn ban for state forests, state parks and forestland DNR firefighters protect." Remember, campfires are NEVER allowed at Rattlesnake Lake.

Traffic Notice: The King County Road Services Division will be closing Cedar Falls Road on the nights of Friday August 19 and Saturday August 20 between 8 p.m. and 6 a.m.  This is the road that leads to the Cedar River Watershed Education Center and Rattlesnake Lake. The county will be replacing a failing culvert and repairing part of the road. The road will be open during the day to prevent major traffic disruptions

Rules and Regulations:

  • Open dawn to dusk, year-round. Parking is free.
  • NO overnight camping or open fires.
  • Portable toilets and lakefront picnic areas. NO drinking water.
  • Water is available at the Cedar River Watershed Education Center.
  • Boat launch: Self propelled and electric boat motors only.
  • Swimming: NO life guards, swim at your own risk.
  • Fishing: Year-round, Washington State selective gear rules apply.
  • Hunting and gathering is prohibited.
  • Absolutely NO fireworks and feeding wildlife.

Rattlesnake Lake Trail

Trail Information and Conditions

Length: ¾ mile to Cedar River Watershed Education Center
Difficulty: Very easy
Users: Foot, Bike, ADA Accessible
View map (pdf)

This lake trail is located on the southeast side of the lake and is a mix of barrier-free paved and packed gravel loop trails that access the lake, parking and the Cedar River Watershed Education Center.

Cedar River Watershed Education Center: Tours, Rentals and Event Permits

The nearby Cedar River Watershed Education Center located on the lake’s south shore offers visitors a chance to experience the watershed through exhibits, information, watershed tours, field trips and special events focused on Seattle’s drinking water, history, wildlife and more. Inquire at the Center about room rentals, special event requests and permits for sporting events, races, community gatherings for 30 or more people, and film productions.

Contact the Center for Information about, Trail Conditions, Watershed Tours, and Recreation area Special Events:

Cedar River Watershed Education Center
19901 Cedar Falls Road SE
North Bend, WA 98045
(206) 733-9421 or (425) 831-6780
Email: Crwprograms@seattle.gov