The Little Red Deer River (often abbreviated as LRD or LRDR) is a medium-sized river stretching approximately 315 kilometers (196 miles) through Alberta, Canada, draining a watershed of roughly 3,689 square kilometers. It originates from Waiparous Creek in the Waiparous Valley and flows northeastward before joining the Red Deer River near Innisfail. The river transitions dramatically from its mountain headwaters through forested foothills and into agricultural prairie landscapes, offering a diverse range of fishing environments along its length. The upper reaches provide classic cold-water trout habitat, while the middle and lower sections shift toward warmwater species, making the Little Red Deer a uniquely varied fishery within Alberta's river system.