Crystal Lake (Gilmanton, New Hampshire)

Crystal Lake
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Location	Gilmanton, Belknap County, New Hampshire
Coordinates	43°26′36″N 71°18′41″W / 43.44333°N 71.31139°W / 43.44333; -71.31139
Primary inflows	Nelson Brook
Primary outflows	Suncook River
Basin countries	United States
Max. length	2.8 mi (4.5 km)
Max. width	0.8 mi (1.3 km)
Surface area	455 acres (1.8 km2)
Average depth	16 ft (4.9 m)
Max. depth	53 ft (16 m)
Surface elevation	623 ft (190 m)
Settlements	Gilmanton Ironworks (town of Gilmanton)

Crystal Lake is a 455-acre (1.8 km²)^[1] water body located in Belknap County in the Lakes Region of central New Hampshire, United States, in the town of Gilmanton.^[2] Crystal Lake is at the head of the Suncook River watershed. Water flows into Crystal Lake from the Belknap Range through Manning and Sunset lakes to the north. Water from Manning Lake enters Crystal Lake via Nelson Brook. Other waterways flowing into Crystal Lake include Wasson Brook and Mill Brook.^{[citation needed]} Water flows out of a dam from the southern end of Crystal Lake via the Suncook Lakes and Suncook River to the Merrimack River. Shoreline development along Crystal Lake consists primarily of summer cottages, with a few year-round residents.^{[citation needed]} Belknap Mountain and Mount Major can be seen from the shoreline.