The Washington State Department of Natural Resources will host a celebration of the 40th anniversary of Earth Day from 10 a.m.-3 p.m. Saturday at the Mima Mounds Natural Area Preserve near Littlerock
Volunteers and visitors will work to remove invasive Scotch broom and take part in interpretive site tours led by the site’s managers and stewards. Light refreshments will be provided; attendees may bring their own lunches. Facilities include a half-mile paved interpretive trail, an interpretive shelter with displays and a 2-mile loop trail.
To reach the preserve from Olympia, head south on Interstate 5, go west on state Route 121 from exit 95, continue west on 128th Street to “T” and turn right on Waddell Creek Road. The preserve entrance is about 1 mile down the road.