Lewiston Lake, California, USA

Lake Locations:

USA - West - California - Shasta Cascade -

A great blue heron intent on catching fish for his breakfast stands undisturbed as a canoe glides by, holding an angler with the same idea. With nothing but the swish and pop of a fly rod to break the silence, morning begins on Lewiston Lake. Nestled at the base of the Trinity Alps in northern California, Lewiston Lake’s glassy waters reflect the surrounding mountains while the trout under the surface call fly fishermen from all over.

Created by the construction of the Lewiston Dam in 1963, Lewiston Lake is an impoundment of the Trinity River, which makes up both its inflow and outflow — the eight-mile long lake is a pause on the river’s journey. Built primarily for flood control and to generate hydroelectric power, Lewiston Lake has become a popular recreation destination.

Lewiston Lake is downriver from the much larger Trinity Lake, and its water comes from the bottom of Trinity Lake. As a result, the water temperature hovers around 45 to 50 degrees year-round. The lake’s water levels are very stable and do not fluctuate seasonally. The cooler water is perfect for trout, and Lewistown Lake has abundant populations of rainbow trout, brook trout, and German brown trout. There is also a healthy kokanee salmon population.

Although all anglers will find plenty of fish, the lake is very popular with fly fisherman. In fact, Lewiston Lake is one of the best fly fishing lakes in California. The first two miles of the Trinity River below the Lewiston Dam are reserved for catch and release fly fishing. Anglers can try their hand against the silver salmon and king salmon and steelhead and German brown trout that live in the river. Also below the dam, the Trinity River Fish Hatchery is operated by the California Department of Fish and Game. The hatchery raises salmon to compensate for salmon lost because of the dams, and it is open to the public.

Lewiston Lake is ideally suited to quiet boats and kayaks, and there are no personal watercraft or jet skis permitted on the lake. Small motor boats are allowed, and there are several marinas and boat launches around the lake. There are also boat rentals available. The Trinity River is a great place for rafting.

The Whiskeytown-Shasta-Trinity National Recreation Area surrounds Lewiston Lake. It is part of the 2.1 million acre Shasta-Trinity National Forest, which is the largest national forest in California. It is an incredibly diverse national forest with elevations ranging from 1,000 feet to mountain peaks of 14,162 feet. The forest includes part of five designated wilderness areas, and the recreation opportunities are almost limitless. There is hiking, mountain climbing, horseback riding, skiing, cross country skiing, snowmobiling, and hunting all within the forest, an easy drive from Lewiston Lake.

There are vacation rentals and some real estate and residential development around Lewiston Lake. Accommodations range from tent camping to cabin rentals. There are RV sites, and the forest service runs several campgrounds around the lake including the Mary Smith campground. Designated as one of the prettiest lakeside campgrounds in California, it is for tent camping only. Nearby historic Lewiston has restaurants, shopping and other amenities. Lewiston and the area around it has a rich gold mining history.

The surrounding forest and mountains make Lewiston Lake feel like a high mountain lake and the cool water makes it fish like a slow -oving river. With such abundant fish and peaceful surroundings, it is a great lake for fly fishing and quiet boats.

Things to do at Lewiston Lake

  • Vacation Rentals
  • Fishing
  • Boating
  • Canoeing
  • Kayaking
  • Jet Skiing
  • Camping
  • Campground
  • Cabin Rentals
  • Hiking
  • Mountain Climbing
  • Cross-Country Skiing
  • Snowmobiling
  • Horseback Riding
  • Hunting
  • National Forest
  • Shopping

Fish species found at Lewiston Lake

  • Brook Trout
  • Brown Trout
  • Chinook Salmon
  • Coho Salmon
  • Kokanee Salmon
  • Rainbow Trout
  • Salmon
  • Steelhead Trout
  • Trout

Lewiston Lake Photo Gallery

  • Image processed by CodeCarvings Piczard ### FREE Community Edition ### on 2015-10-31 02:34:47Z | http://piczard.com | http://codecarvings.com

Lewiston Lake Statistics & Helpful Links

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Lake Type: Artificial Reservoir, Dammed

Water Level Control: U.S. Bureau of Reclamation

Surface Area: 759 acres

Shoreline Length: 15 miles

Normal Elevation (Full Pond): 1,902 feet

Average Depth: 7 feet

Maximum Depth: 65 feet

Water Volume: 14,660 acre-feet

Completion Year: 1963

Water Residence Time: 2-10 days

Drainage Area: 26 sq. miles

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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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