The marathon, 26 miles, 385 yards, will start at 9 a.m. on Main Street in Schroon Lake. The single loop course circumnavigates Schroon Lake over challenging forest roads with lakeside views until it finishes back at the Schroon Lake town beach.
There is also a two-person marathon relay that gets under way at 9 a.m.
People who wish to walk the marathon course can get started at 7 a.m. The course will remain open until 3 p.m.
The marathoners have company over the second half of the course as the half marathoners will toe the starting line in Adirondack at 10 a.m. to race to the finish in Schroon Lake 13.1 miles later.
Marathon weekend begins on Saturday, Sept. 25, at 9:30 a.m. with 5 and 10-kilometer runs through the streets of Chestertown.
The races begin and end at the Chester Municipal Center.
Individual racers as well as teams can register on Friday, Sept. 24, from 7 to 9 p.m. or Saturday morning from 7 to 8:30 a.m. at the municipal center.
Also participating will be about 500 volunteers, who will man aid stations along the courses and work the finish area.
Packet pick up for marathon and half marathon racers will be Saturday 11 a.m. to 5 p.m. at Schroon Lake Central School.
There will be a running expo at the same time as well as local craft vendors.
There will be a pasta dinner, open to runners and others, that night at 5:30 at Word of Life. Tickets are available at the expo and at the door.