Natural water slide in Alpine, UT. Head North on Alpine's Main Street and then take a left on Fort Canyon Road, which you will follow for about one mile. After you cross a small river surrounded by foliage there will be a gate on your left leading to a field full of construction equipment. Follow the road up to the top, avoiding any tempting detours. Where the pavement ends, a dirt road begins, and to the left of that road is a small dirt path leading through the trees.