Dave spent decades exploring the Belknap Range, marking existing trails, blazing new trails and marking the position of numerous natural and historic features. Using early GPS technology Dave generated the 1st hiking maps of the Range. There were several in the series of which we have three. Current maps of the Range are basically updates of Dave's maps:
http://belknaprangetrails.org/belknap-range-trail-map/
Dave was a founding member/director of the Belknap Range Conservation Coalition:
http://belknaprange.org/belknaprangemap.htm
Dave played a key role in the Mt. Major land conservation effort by purchasing, with his own funds, the parcel at the trail head. A developer had made an offer on the land and Dave stepped in. The parcel was later transference to the Forest Society.
I last talked to Dave about 4 weeks ago asking about the history of Pine Mt. also known as Alton Mt. He still had his stacks of info right nearby.
Dave was always very modest, quick to shy away from taking credit for his wonderful work. I, as with many others, will miss the man.