Long Lake in Chippewa County is a premier 1,052-acre natural lake in northwest Wisconsin, renowned for its exceptional multi-species fishery and remarkable water quality. With a maximum depth of 101 feet and a mean depth of 20 feet, this mesotrophic waterbody features a 14-mile shoreline with complex structure. The lake maintains excellent clarity with an average secchi depth of 12.5 feet and a Trophic Status Index of 47. As a two-story lake, Long Lake develops a thermocline around 20 feet during summer months, supporting both warm-water gamefish and a cisco population. The lake is connected to Herde Lake and Dark Lake through channels or narrows, and these three waterbodies are managed as a single fishery due to fish connectivity and movement between them. Long Lake sits adjacent to the National Ice Age Scientific Reserve and in proximity to thousands of acres of Chippewa County Forest, creating an outdoor paradise with abundant wildlife including bald eagles and black bears.