Skip to main content
King County logo


Natural Resources and Parks
Public Affairs

Time running out to register for 6th-annual King County Parks’ Big Backyard 5K, May 31


King County Parks' Big Backyard 5K presented by Group Health is coming right up. Sign up today for this fun family event - and don't forget to bring your leashed pooch!


Join with family, friends and fellow outdoors enthusiastsBBY5K_dogs in a fun event that supports King County Parks – the Big Backyard 5K presented by Group Health, May 31 at Marymoor Park.

The Big Backyard 5K starts at 9 a.m. and takes participants through beautiful Marymoor Park at the northern end of Lake Sammamish. The course follows the Marymoor Connector Trail and a portion of the East Lake Sammamish Trail. Strollers and leashed dogs are welcome.

A free kids’ dash featuring King County’s environmental mascot Bert the Salmon follows the fun run at 10 a.m., and then it’s time for the awards ceremony at 10:15 a.m.

Included in the $40 registration fee is an event t-shirt, plus food, drinks and more on race day. Registration for the 2015 run is easy – sign up online at Funds raised by the 5K help leverage King County taxpayers’ investment in parks, trails and open space by keeping these features open and safe for all to enjoy.

The Big Backyard 5K promotes fitness and community involvement, and has raised more than $200,000 for King County Parks.

# # #

About King County Parks
King County Parks - Your Big Backyard - offers more than 200 parks and 28,000 acres of parks and natural lands, including such regional treasures as Marymoor Park and Cougar Mountain Regional Wildland Park, 175 miles of regional trails, 180 miles of backcountry trails and a world-class aquatic center. By cultivating strong relationships with non-profit, corporate and community partners, King County Parks enhances park amenities while reducing costs. Learn more at

About Group Health
Group Health is one of the nation’s leading nonprofit health systems, recognized for its consumer-governed cooperative origins and innovative solutions for improving care. Established in 1947, Group Health Cooperative, together with its subsidiaries Group Health Options, Inc. and KPS Health Plans, provides health coverage to more than 617,000 residents of Washington state and North Idaho. More than 394,000 members receive care from Group Health Physicians medical group at Group Health Medical Center locations across the Puget Sound region and Spokane. Group Health advances health in the community through its medical education, charitable foundation, and nationally recognized research institute. For more information about Group Health, visit