Pittsfield State Forest is a great place to ride mountain bikes. For those who don't know the state forest, it's roughly 8 x 2 miles (10,000 acres) along the Taconic Ridge, sandwiched between downtown Pittsfield and the NY state line. A DCR trail map is available at the state forest, and the following description uses trail names from that map. The best map for "the big picture" is the Rubel Bike Map for Western Massachusetts (bikemaps.com). To get to the state forest, go west on West Street from downtown Pittsfield and follow state forest signs (via Churchill and Cascade Streets). Over the last few years Berkshire NEMBA, working with DCR staff, have put in a highly enjoyable network of trails in the eastern section of the forest. A very detailed map of these trails is available as a handout at the guard shack at the forest's entrance.