Susitna River
About
Fourteen thousand CFS average through 313 miles of Alaska's Matanuska-Susitna Borough, the Susitna drains glacial headwaters from the Alaska Range down to Cook Inlet. The Dena'ina Athabascan people built their river system around these flows long before outside contact. Upper reaches through Devil's Canyon demand Class III-IV skills on remote multi-day floats, while the middle section near Talkeetna eases to Class I-II water with jet boat access to tributary mouths. Below Talkeetna, the lower Susitna flattens to Class I through the dipnet fishery zones approaching Cook Inlet. Optimal flows run 5,000-25,000 CFS on USGS gauge 15292000, though this glacially-fed system can push much higher during breakup and summer melt periods. Alaska Department of Fish and Game manages the sport fishery. The proposed Susitna-Watana Hydroelectric Project was suspended in 2017, leaving the drainage free-flowing. Susitna Landing provides outfitting services for those planning multi-day descents.
River conditions are community-verified. CFS ranges, difficulty ratings, and access points may not reflect every flow level or seasonal change. Always check current conditions, scout unfamiliar rapids, and paddle within your skill level.