CAMDEN — The Maine Department of Conservation will open Camden Hills State Park and Donnell Pond Unit in Sullivan on National Trails Day, June 7.

The Camden Hills State Park will be open all day with a trails maintenance training session beginning at 9 a.m. Contact Gordon Bell at 236-0849 or 236-3109.

Donnell Pond will be open for a guided tour and trail work from 9 a.m. to 1 p.m. The public is invited to meet at Schoodic Beach parking lot off Route 183. For information, call Robin Smith of the Bureau of Parks and Lands at 827-5936.

The work party will be from 9 a.m. to 4 p.m. Contact Jay Hall at Jonesboro at 434-2627.