Linking ringsPublished on 08/14/2006 Participants at OFBF's annual Camp-In get a lesson in dendrochronology, the analysis of growth rings in old timber to date past environmental events. The U.S. Forest Service Research Station in Delaware County was one stop on a bus tour that also included a Christmas tree farm and a Dorper sheep operation. This year’s Camp-In, which is in its 37th year, was attended by 115 people. | |