Nordic

Maine Wilderness Lodge cross-country ski trail network. Through the Appalachian Mountain Club.

http://www.outdoors.org/lodging/mainelodges/maine-winter-sports.cfm

Location is for Northwoods Outfitters, where the Lodge to Lodge shuttle starts.
http://www.maineoutfitter.com

Jackrabbit Trail

Lake Placid Cross-Country/Telemark

Note: Location is for Lake Placid Toboggan Run. Jackrabbit trail passes nearby on the shore of Mirror Lake.

http://whiteface.com/activities/xc.php

Cross-Country Skiing at the Olympic Sports Complex.

http://www.cascadeski.com

http://nysparks.com/parks/147

16,000 acre Clarence Fahnestock Memorial State Park.
15 km of groomed, tracked and mapped trails for skiers and snowshoers are located within the State Park. The Park features a warming lodge, rentals, lessons, and food services.

http://www.deweyskicenter.com

(Indicated location is approximate)

http://www.breiax-countryski.org

Multiple Trail Systems:

Canal Trail
Egypt Road Trails
Jackson Hill Trails

http://www.skibigm.org

http://keweenawtrails.com

Multiple trail systems (Chassell, Michigan Tech, Swedetown and Maasto Hiihto/Churning Rapids). Trails located in Michigan Cities: Calumet, Chassell, Copper Harbor, Eagle Harbor, Hancock, and Houghton.

See http://keweenawtrails.com/trails-maps

http://www.royalgorge.com