The first formal guidance on management of fish resources provided by the National Park Service came in 1936 and encouraged the stocking of native fish, discouraged stocking non-native fish and prohibited stocking of fishless waters. In 1968, fisheries management shifted from an emphasis on recreational fishing to that of the recovery of native fish species. Stocking ceased, but not before over 20 million fish had been stocked into Rocky's waters between 1886 and 1968. By this time almost all the park's waters were inhabited by non-native fish species. Under the new management policy, 17 native trout reclamation projects have been conducted thus far. (Text provided by Chris Kennedy / U.S. Fish and Wildlife Service) Go to the park's Fishing page for more information about recreational fishing in the park. ×.