Rock Lake   Be the first to submit input for Rock Lake. If you have info on Rock Lake, Wrangell Mountains, Valdez-Cordova Borough, Alaska please submit it here to improve this web site.          These outdoors activities are available near Rock Lake.   Whitewater Near Rock Lake: Gilahina River, Valdez-Cordova Census AreaBorough, 2 miles away       Class III - 7.5 miles long (McCarthy Road) Kuskulana River, Valdez-Cordova Census AreaBorough, 7 miles away       Class IV+ - 19 miles long (Nugget Creek to McCarthy Road) Kotsina River, Valdez-Cordova Census AreaBorough, 11 miles away       Class V+ - 42 miles long (Upper Kotsina to Copper River)