Notable geographic features include The Great Thumb, Long Mesa, and Tenderfoot Mesa. The main attraction is Havasu Creek, with aquamarine water (due to the presence of travertine), the stream is one of the longest tributaries on the south side of the Colorado River, and falls over its course. The stream is renowned for its beautiful waterfalls, which include Havasu Falls, Mooney Falls, and Beaver Falls. A fourth well-known falls, Navajo Falls, is no longer in existence following a devastating flood in 2008. While Navajo Falls is no longer in existence, the re-routing of the stream created two new falls, Fifty Foot Falls and Little Navajo Falls.