Tennessee River Kayaking. Nickajack Lake. Shellmound Recreation Area Boat Launch. Jasper. Joint event with the Highland Rim chapter. We will launch our kayaks or canoes from the Shellmound Recreation Area at 9:00 am CT. Take Exit 158 off Interstate East and turn right. Continue past the Little Cedar Mountain trailhead and follow signs to the Shellmound Recreation Area campground. For more information or to sign up, contact Sara Pollard at 615-714-3610 or email@example.com.