Higgins Lake is a large recreational and fishing lake in Roscommon County, in the U.S. state of Michigan. The 9,900 acre (40 km²) lake is known for its deep, clear waters and is the 10th largest in Michigan with a shoreline of 21 miles (34 km). It is named after Sylvester Higgins, Michigan's first chief of the topographical department of the Michigan Geological Survey. It has a maximum width of 4 miles (6.4 km) and a length of 7 miles (11 km) with a maximum depth of 135 feet (41 m). The mean depth is 44 feet (13 m) and the lake contains almost 20 billion cubic feet (570 million m³) of water. Its retention time is about 12.5 years. The lake's watershed cover 19,000 acres (77 km²). The twin-lobed lake receives half of its water from submerged springs, 6% from incoming streams and the remainder from direct rainfall and runoff. It drains into Marl Lake by the Cut River which runs into Houghton Lake and eventually to Lake Michigan. A mere mile north of the lake, water flows into the Lake Huron watershed. Sportsfish in the lake include yellow perch, trout, smelt and pike and are taken both in open water and by ice fishing. Higgins Lake is considered a morphometrically oligotrophic lake, meaning that its large size causes it to appear and function as a nutrient-poor lake although it does receive a fair amount of nutrients.