Mary Thilly from Baileys Harbor, Ralph Blankenburg from Sister Bay, Roy Thilly from Baileys Harbor, Lou Pasquesi from Sister Bay, Jack Finger from Ellison Bay, and Amanda Pyke from Sturgeon Bay Door County Land Trust Land Stewardship Manager, Door County Land Trust work at Three Springs Nature Preserve to control non-native scotch pine. Scotch pine is a coniferous tree in the pine family (Pinaceae). Tuesday May 17 in Sister Bay, Door County, WI. Photo by Len Villano.