NY 73 begins at a traffic light along NY 86 near the eastern end of the village of Lake Placid in the town of North Elba. The highway heads towards the southwest, passing homes as Sentinel Road. At the intersection with Mill Pond Road, NY 73 passes a small pond, crossing over an associated creek. For that short time, the highway takes on a more southerly direction, mainly to the southeast. The surroundings of the highway remain the same as NY 73 leaves Lake Placid via Cascade Road.