Summary
The Monday Mile route is on the inner loop of Onondaga Park Drive in Upper Onondaga Park. The path is 4 feet wide in most places. The narrowest point is 42 inches. The route is a scenic loop around Hiawatha Lake. Maps of the Monday Mile route along with turn-by-turn directions are available on the agency website.
Link to AllTrails map of trail: https://www.alltrails.com/explore/recording/upper-onondaga-park-monday-mile