Purity Lake, New Hampshire, USA

Lake Locations:

USA - New England - New Hampshire - Lakes Region -

In the late 1800’s Edward E. Hoyt moved his family to Purity Lake in the Lakes region of New Hampshire. Hoyt started a sawmill and water bottling company on the shores of the lake. The Hoyt Natural Mineral Spring Water Company bottled and sold water to customers in New York. It was appropriately named Purity Spring, also the name of the inn Hoyt established on the lake’s shore. The Hoyt family has been running a resort on Purity Lake for five generations. Today, the clean, clear lake offers old-fashioned recreation with something to please the entire family.

Purity Lake covers 75 acres in the Town of Eaton near Madison. It has a maximum depth of 55 feet and an average depth of 12 feet. It is a private lake with an abundance of recreation opportunities. Because of the lake’s small size, canoes, kayaks, paddle boats, and sailboats are an ideal way to explore the lake. When the wind dies down, one motor boat is allowed on the lake at a time shuttling water skiers back and forth. Sand beaches line the shore of the lake and provide access for swimming and sunbathing.

Lake Purity is classified as mesotrophic or moderately fertile. There are abundant populations of pickerel, smallmouth bass and perch, and anglers will find healthy populations of sunfish and pan fish. Both fishing from a small boat and fly fishing from the shore are popular, and Purity Lake is a good place to teach children to fish.

Trails for hiking and biking ring Purity Lake. In the winter, those same trails are ideal for snow shoeing and cross country skiing. In fact, skiing through snow-covered forests looking down on the frozen lake is one of the treats of winter at Purity Lake. Winter sports, however, don’t stop there. Alpine skiing is available near the lake, and horse-drawn sleighs take visitors on frozen journeys through the woods. There is even a skating rink making Purity Lake a destination for all seasons.

Edward Hoyt’s son, Milt, established a camp for boys on the shores of Purity Lake. Camp Tohkomeupog was started in 1932. Two years later, Ellen Hoyt, Milt’s sister established Camp Wampineauk for girls. The camp operated for 43 years, introducing girls to the beauty and joy of summers at Purity Lake. Upon Ellen Hoyt’s death, the family donated 168 acres including the girl’s camp to the Audubon Society. Today the Audubon Hoyt Wildlife Sanctuary offers visitors to Lake Purity the chance to see a variety of birds like the pileated woodpecker with its impressive red crest and the dinosaur-like great blue heron. White-tailed deer, moose, beaver, porcupine and black bear all make their homes in the sanctuary. Perhaps one of the best ways to see the wildlife is to quietly canoe or kayak from Purity Lake into the heart of the sanctuary.

For over a hundred years, visitors have been coming to enjoy the natural beauty of Purity Spring Valley. There are cottages around the shores of the lake with vacation rentals and real estate for sale in Eaton and nearby Madison. With is crystal clear clean water and abundant wildlife, Purity Lake is a fantastic Lakes region destination. Add the trails for hiking and biking along with almost every winter sport imaginable, and Purity Lake is a getaway sure to please the entire family.

Things to do at Purity Lake

  • Vacation Rentals
  • Fishing
  • Boating
  • Sailing
  • Swimming
  • Beach
  • Canoeing
  • Kayaking
  • Water Skiing
  • Camping
  • Hiking
  • Biking
  • Downhill Skiing
  • Cross-Country Skiing
  • Horseback Riding
  • Wildlife Viewing
  • Birding

Fish species found at Purity Lake

  • Bass
  • Black Bass
  • Perch
  • Pickerel
  • Pike
  • Smallmouth Bass
  • Sunfish

Purity Lake Photo Gallery

    Purity Lake Statistics & Helpful Links

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    Lake Type: Natural Freshwater Lake, Not Dammed

    Surface Area: 75 acres

    Normal Elevation (Full Pond): 463 feet

    Average Depth: 12 feet

    Maximum Depth: 55 feet

    Trophic State: Mesotrophic

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    Trophic State | LakeLubbers

    Trophic State measures the level of algae and nutrients in a lake.

    An oligotrophic lake is very clear (blue in color) and does not support much plant or fish life. A hyper-oligotrophic lake is the clearest of all lakes, and is nearly devoid of plants and fish.

    A mesotrophic lake is slightly green and supports a moderate degree of plant and fish life. A lake's most desired trophic state is generally this mid-point - the mesotrophic state.

    A eutrophic lake is somewhat murky and supports a large amount of plant and fish life. A hypereutrophic lake is clouded with algae, plant life, and fish life. A eutrophic or hyper-eutrophic lake can be difficult to navigate by boat - and is often an unpleasant place to swim.

    The use of phosphorus-rich and nitrogen-rich fertilizer on lawns and golf courses surrounding a lake can cause it to become eutrophic or hypereutrophic.


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    Catchment or Drainage Area | LakeLubbers

    This is the surrounding area that drains into a lake, including land, rivers and their tributaries. This is also known as the lake's "catchment basin".

    Small lakes at the highest peaks of mountains have small drainage areas. The world's oceans have the largest drainage areas.


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    Lake-Area Population | LakeLubbers

    This is the estimated number of people who live in a house with a view of a lake, plus those who self-describe the lake as their home, for example: "I live at Smith Mountain Lake."


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    Water Residence Time | LakeLubbers

    This is the estimated time that it takes for an amount of water equal to the entire volume of a lake to flow out of - or evaporate from - the lake.

    Residence Time can be as short as a few days for fast-flowing small lakes, and can exceed 100 years for slow-flowing large lakes.


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    Completion Year | LakeLubbers

    This is the year that a reservoir was first filled to the reservoir's normal elevation - or the year that a natural lake was first dammed. A large reservoir can take more than a year to fill after its dam is first closed.

    The Grand Anicut in southern India is generally considered the world's oldest dam that still operates. Grand Anicut was constructed in the second century BC. It now impounds an irrigation network that includes roughly one million acres.

    You can find many of the the world's newest reservoirs on LakeLubbers. Many of the world's oldest reservoirs appear on the last page of that list.


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    Water Volume | LakeLubbers

    This is the estimated volume of water that a lake contains -- measured at the lake's normal elevation. By this measure, the world's largest freshwater lake is Siberia's Lake Baikal.

    You can find many of the the world's largest lakes (by water volume) on LakeLubbers.

    Water Volume can be measured in acre-feet, in cubic miles, or in cubic kilometers. One acre-foot is the amount of water needed to cover one acre (43,560 square feet) to a depth of one foot. One cubic mile equals 3,379,200 acre-feet. One cubic kilometer equals 810,713 acre-feet.

    1 acre-foot is equal to 325,851 US gallons. Siberia's Lake Baikal contains about 6,276,367,740,000,000 gallons of freshwater - nearly 1 million gallons for every living person on earth.

    The other - and more widely used - measure of a lake's size is the lake's surface acreage. By that measure, the world's largest freshwater lake is North America's Lake Superior.


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    Maximum Depth | LakeLubbers

    This is the estimated greatest depth of the water in a lake -- measured at the lake's normal elevation. The world's deepest lake is Siberia's Lake Baikal; that lake's maximum depth is estimated at 5,314 feet.

    You can find many of the the world's deepest lakes on LakeLubbers. If you select the last page of that list, you will find the (maximum depth of) the shallowest lakes in our database.


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    Average Depth | LakeLubbers

    This is the estimated average depth of the water in a lake -- measured at the lake's normal elevation. If the water volume and surface area of a lake are known, an estimate of the lake's average depth can be calculated:

    Water volume ÷ Surface Area = Average Depth

    Example: 1,000,000 acre-feet ÷ 20,000 acres = 50 feet average depth


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    Maximum Elevation | LakeLubbers

    This is a lake's highest water level, measured by the lake's surface distance above sea level, that can occur during flooding. A lake's highest possible maximum elevation is usually the top of the lake's dam or spillway.

    At lakes that include residential development, government regulations usually forbid the construction of homes below a lake's maximum elevation.


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    Minimum Elevation | LakeLubbers

    This is a lake's lowest water level, measured by the lake's surface distance above sea level, that can be reasonably expected to occur. Low lake levels can occur due to deliberate seasonal draw downs for irrigation or impending snow melt, reduced water inflows, drought and evaporation, residential or commercial water demands, and hydropower generation.

    Some lakes' minimum and maximum elevations are virtually the same. Lakes that generate hydropower may vary by several feet - according to power demand. Lakes whose primary purpose is to prevent flooding can seasonally vary by 100 feet or more.

    When some lakes reach their minimum elevation, their boat ramps may not be long enough to permit boat access - and boats docked on shallow parts of the lake may end up on dry ground. In those cases, kayakers and shore-based anglers may be among the few happy recreational users of the lake.


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    Normal Elevation | LakeLubbers

    This is a lake's normal water level, measured by the lake's surface distance above sea level. For a reservoir, this water level is also known as "full pond" or "full pool".

    You can find many of the world's highest-elevated lakes on LakeLubbers. Lakes with the lowest elevations (known by LakeLubbers) are shown on the final page of that list.


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    Shoreline Length | LakeLubbers

    This is the length of the exterior shoreline around a lake - measured at the lake's normal elevation. The shoreline length can be considerably shorter or longer when lake water levels are lower or higher than normal.

    A lake with many coves has a much longer shoreline than a lake of similar surface area that is nearly circular in shape.

    When known, the shoreline miles that we report in our statistics include only the lake's exterior shoreline, and exclude the shorelines of islands located within a lake's boundaries. In lakes with many islands, those islands' combined shorelines may exceed a lake's exterior shoreline.

    You can find many of the world's longest-shoreline lakes on Lakelubbers.


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    Surface Area | LakeLubbers

    This is the area (acreage, square kilometers, etc.) of the top surface area of a lake - measured at a lake's normal elevation. The surface area can be considerably smaller or larger when lake levels are lower or higher than normal. North America's Lake Superior is the world's largest freshwater lake by this measure.

    The other measure of a lake's size is the lake's water volume. By that measure, the world's largest freshwater lake is Lake Baikal in Siberia.

    You can find many of the world's largest lakes (acres) on Lakelubbers. There is no widely-accepted minimum surface area that defines a lake. What Lakelubbers describes as a lake, you might call a pond. The smallest lake that Lakelubbers currently includes is Hawaii's 2-acre Lake Waiau.


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    Water Level Control | LakeLubbers

    This is the organization that controls water releases or outflows from the lake or reservoir. In the USA, this is often the US Army Corps of Engineers, a power company, a municipal water system, an irrigation district, or a paper manufacturing company. In the case of private or gated lakes, a homeowners' association may be the lake's controlling authority.

    Many lakes cross borders, including North America's Great Lakes. The control of such lakes and their coveted freshwater may be amicably shared - or hotly disputed.

    "Water wars" continue at many lakes as growing populations and crop irrigation needs compete for the freshwater that lakes contain.


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    Lake Type | LakeLubbers

    There are 3 basic types of lakes that are currently included on LakeLubbers. 2 types may be dammed or not dammed, producing 5 classifications.

    - A Reservoir is a man-made freshwater lake that is usually created by damming rivers.

    - A Natural Freshwater Lake occurs naturally - often by glacial activity - and has a salinity of less than 30 parts per thousand. It may be dammed to produce electricity or for other reasons.

    - A Natural Saltwater Lake occurs naturally and has a salinity of more than 30 parts per thousand (ppt). It may be dammed.

    "Brackish" water may be categorized as freshwater or saltwater, depending on its salt content (salinity). Oligohaline water has less than 15 ppt of salt. Mesohaline water has 15-29 ppt. Polyhaline has 30-335 ppt.


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