Rock Island State Park
Rock Island State Park straddles the county boundaries of White and Warren. The less busy, more hiking available, best canyon and waterfall views are all best observed from the north side in White County. Maps The canyon you walk through is formed almost entirely in the Fort Payne Formation, so look for freakishly huge crinoids in the boulders that are too large for people to carry off in their pockets. Burrow casts are also visible in many of the rocks. Surely in times prehistoric there were geodes-=a-plenty to be found there, but the hoards of tourists have long since stripped that resource from the area. Waterfalls As you approach on a warm day with the windows down you can hear the roar of Twin Falls (Tennessee's largest waterfall by volume) before you can see it. It is effectively a man-made waterfall that results as a portion of the Collins River is pirated through conduits in the cliff as a result of Great Falls Dam raising the water table. From the northern