NY 81 begins at an intersection with NY 145 and Potter Hollow Road (unsigned NY 910G) in the hamlet of Cooksburg (in the town of Rennselaerville). NY 81 proceeds eastward through Rennselaerville, as a two-lane rural roadway, paralleling and crossing some power lines.
NY 81 starts at an intersection with NY 145 and Potter Hollow Road (an unsigned road NY 910G) in the hamlet of Cooksburg within the town of Rennselaerville. It then travels eastward as a two-lane rural road, alongside power lines.