Beautiful hike starts along Money Brook and follows it to a waterfall. This hike is one of the best hikes in the Berkshire region because it takes in the tallest mountain in Massachusetts, and it follow Money Brook at the start, which makes for a very nice gradual start to this difficult hike. Money Brook trail starts gradual and works its way up the deep valley between Greylock and Mt Prospect. The trail passes a beautiful waterfall that is worth diverting from the trail for. At the head of the valley the trail joins the Appalachian Trail and follow the AT South over Mt Williams, Mt Fitch and on to Greylock summit with pretty good view on Fitch and Williams. The views from Greylock summit are spectacular. Returning from the summit Continue South on the AT to the Hopper Trail, follow Hopper trail thru the campground on Sperry Road out to stony ledge with spectacular views of greylock and the Hopper. A trail continues past a lean to, take the Haley Farm Trail on the right which ends up right where you started.