An official Path Through History Site! Seven generations of the socially-prominent Livingstons lived at Clermont, a Nat'l Historic Landmark. The riverside mansion's most notable resident was Chancellor Robert R. Livingston, who drafted the Declaration of Independence, negotiated the Louisiana Purchase and teamed up with Robert Fulton to develop the first steamboat, the North River Steamboat later, know as "the Clermont”. Mansion tours offered April - October, Wed. - Sun. and Monday holidays 11:00 -4:00 pm; November and December, Sat. and Sun. 11:00 am-2:00 pm. Gardens and picnicking. Site also features 8 km of cross country skiing.