Access to Mount Greylock State Reservation is free, Adella, with the exception of a $2 parking fee at the summit parking lot. The 15-site Mount Greylock Campground is a hike-in-only campground, with reservations required between Memorial Day and Columbus Day. Fees are $8/night for non-MA residents, $6 for residents. Camping here is free in the off-season. There are also five lean-to shelters within the park that are available on a first-come, first-serve basis at no cost. More information is available regarding camping and backpacking options within Mount Greylock State Reservation here: http://www.mass.gov/dcr/parks/mtGreylock/recreation.htm