Walden Pond State Reservation, a 462-acre park with protected open space, is managed by the Massachusetts Department of Conservation and Recreation (DCR). Walden Pond State Reservation is in Concord at the intersection of Route 2 and Route 126 on the Lincoln Byway loop. It is home to Walden Pond, the 103-foot deep kettle hole pond made famous by Henry David Thoreau. Thoreau lived on the land here in 1845 and stayed for two years. While he lived here he kept a journal that he refined for his book Walden in 1854. Visitors may enjoy a replica of Thoreau’s modest home, as well as interpretive programs, guided walks, a gift shop, bookstore, and the Tsongas gallery.