This section of the trail runs along the Provin Mountain Ridge, mostly along its western rim — a skyline path through the woods — past the former facility of TV station WWLP to the Springfield Underground Reservoir, thence down to the Westfield River in Robinson State Forest.
Note: There is no potable water on this section, so bring an adeaquate supply.
(Planned road construction on MA 57 has been postponed for several years.)