Cross Country (Nordic)
Snoqualmie Pass has over 100k of groomed cross country trails for classic and skate ski.
Trail Maps
The Summit Trails from Hyak (East)
https://summitatsnoqualmie.com/assets/images/Summit/Images/mountain%20maps/nordic-map.jpg
Cabin Creek Trails
http://www.kongsbergers.org/trails.pdf
Iron Horse Trail
https://www.parks.state.wa.us/DocumentCenter/View/58/Crystal-Springs-PDF
and
https://parks.state.wa.us/DocumentCenter/View/11535/Palouse-to-Cascades-Trail—Kittitas-County-West-PDF
Pass Information-
Snoqualmie Pass road conditions
Cabin Creek Sno-Park
Sno-Park permits Required at Cabin Creek, Crystal, Gold Creek, Hyak, Lake Easton