Governor Dick Environmental Center, 3283 Pinch Road, Mount Gretna, will host a Music on the Porch bluegrass jam on Sunday, Dec. 4, from 1:30 to 4 p.m. The music will feature holiday music and traditional favorites.

The program is free and open to the public. However, preregistration is required by contacting 717-964-3808 or governordick@hotmail.com and providing a name and phone number in case the program is canceled.