downstream of the McCloud Reservoir dam with 4 sites and a vault toilet. It sits at the junction of Hawkins Creek and the Lower McCloud. While Ah Di Nah Campground is located only further downstream from Ash Camp, it is about of dirt road driving to get there. It is a Shasta-Trinity National Forest campground and a fee is charged for nightly camping. Ah Di Nah is popular with backpackers and anglers for its proximity to the Pacific Crest Trail and the Nature Conservancy area on the McCloud River. Bathrooms and water are available. Ecology The McCloud once hosted a native population of bull trout (Salvelinus confluentus), but the species became extinct in the McCloud watershed after McCloud Reservoir cut off the fish from their spawning grounds. The last reported Bull trout (misidentified as Dolly Varden trout (Salvelinus malma) at that time, Dollys are not from this southern latitude) was caught in the 1980s. The Upper McCloud and its tributaries above Middle Falls are home to the McCloud River redband (Oncorhynchus mykiss stonei), a native subspecies of rainbow trout. These redband trout were proposed for endangered species status, as their genetics have been introgressed by hybridization with hatchery stocked rainbow trout. The Falls of the McCloud River form a natural barrier to rainbow trout migration historically. An amplified fragment length polymorphism study show Sheepheaven Creek (the type specimen) genetics to be sufficiently different to warrant subspecific status. Conservation efforts have included transplanting the relative pure Sheepheaven Creek strain into Swamp and Trout Creeks. Threats The McCloud ecosystem faces threats to the various cultural sites along the river and the general river ecosystem health. In November 2020, the Trump Administration under the direction of then U.S. Secretary of the Interior, David Bernhardt, approved plans to increase the nearby Shasta Dam by 18.5 feet. The consequences would include the flooding of 5,000 acres of the local habitat which would harm the wild trout fishery as well as introduce permanent and seasonal flooding of roughly 39 sacred Winnemem Wintu Tribe sites that are located along the McCloud River. The river system is closely tied to the Winnemem Wintu Tribe's culture as the tribe once lived in the greater Siskiyou Region and depended greatly on the river as a source of food and a setting for cultural ceremonies. In 1945, the completion of the Shasta Dam on the Sacramento River harmed the river's salmon