Long Lake   Be the first to submit input for Long Lake. If you have info on Long Lake, Talkeetna Mountains, Matanuska-Susitna Borough, Alaska please submit it here to improve this web site.          These outdoors activities are available near Long Lake.   Whitewater Near Long Lake: Matanuska River - East Fork and Main Stem, Matanuska-SusitnaBorough, 6 miles away       Class II+ - 17.5 miles long (Close to Hunter Lake to Caribou Creek)