Bike - MTN (Rail Trail - Andover) 2:50:00  61.5 km (2:46 / km) +1100m 2:32 / km
SLR - Gottier - Rockville Spur RT - Vernon RT - Bolton Notch - Hop River RT - turn around and back.
Couldn't locate the beginning of rail trail and wound up on Fox Hill in Rockville, Special Olympics events going on, eventually got back to rail trail.
Coming back followed trail all the way to end - a pile of dirt with a narrow (<12") game path down to Vernon Ave - no wonder I missed it going out.
A very fine day for a ride..