Jenny Lake is located in
Grand Teton National Park
Grand Teton National Park is an American national park in northwestern Wyoming. At approximately , the park includes the major peaks of the Teton Range as well as most of the northern sections of the valley known as Jackson Hole. Grand Teton Na ...
in the
U.S. state
In the United States, a state is a constituent political entity, of which there are 50. Bound together in a political union, each state holds governmental jurisdiction over a separate and defined geographic territory where it shares its sover ...
of
Wyoming
Wyoming () is a U.S. state, state in the Mountain states, Mountain West subregion of the Western United States. It is bordered by Montana to the north and northwest, South Dakota and Nebraska to the east, Idaho to the west, Utah to the south ...
. The lake was formed approximately 12,000 years ago by
glacier
A glacier (; ) is a persistent body of dense ice that is constantly moving under its own weight. A glacier forms where the accumulation of snow exceeds its Ablation#Glaciology, ablation over many years, often Century, centuries. It acquires dis ...
s pushing rock debris which carved
Cascade Canyon
Cascade Canyon is located in Grand Teton National Park, in the U.S. state of Wyoming. The canyon was formed by glaciers which retreated at the end of the last glacial maximum approximately 15,000 years ago. Today, Cascade Canyon has numerous ...
during the
last glacial maximum
The Last Glacial Maximum (LGM), also referred to as the Late Glacial Maximum, was the most recent time during the Last Glacial Period that ice sheets were at their greatest extent.
Ice sheets covered much of Northern North America, Northern Eur ...
, forming a
terminal moraine
A terminal moraine, also called end moraine, is a type of moraine that forms at the terminal (edge) of a glacier, marking its maximum advance. At this point, debris that has accumulated by plucking and abrasion, has been pushed by the front edge ...
which now impounds the lake. The lake is estimated to be deep and encompasses . Jenny Lake is considered to be a major focal point in Grand Teton National Park, with many hiking trails, scenic boat rides, and quick access to the major climbing routes onto the tallest peaks of the
Teton Range
The Teton Range is a mountain range of the Rocky Mountains in North America. It extends for approximately in a north–south direction through the U.S. state of Wyoming, east of the Idaho state line. It is south of Yellowstone National Park and ...
.
Jenny and
Jackson Lakes are the only lakes in Grand Teton National Park where motorboats are permitted; both lakes have scenic tours available. A 2005 study of the water quality of the lakes in Grand Teton National Park indicated that all the lakes in the park were still considered pristine and that they had not been impacted by air or water pollution.
Jenny Lake is a starting point for many day and overnight hiking trips. The
Jenny Lake Trail
The Jenny Lake Trail is a long hiking trail which circles Jenny Lake located in Grand Teton National Park in the U.S. state of Wyoming. The trail begins at the Jenny Lake campground or can be accessed at several other trailheads. One of the most ...
loops around the lake and is considered to be relatively easy due to the small altitude gain of . However, the altitude increases rapidly once Cascade Canyon is entered.
[
Jenny Lake is named after a Shoshone Indian woman who married an Englishman, Richard "Beaver Dick" Leigh.]
See also
*Jenny Lake Ranger Station Historic District
The Jenny Lake Ranger Station Historic District comprises an area that was the main point of visitor contact in Grand Teton National Park from the 1930s to 1960. Located near Jenny Lake, the buildings are a mixture of purpose-built structures and ...
References
Lakes of Grand Teton National Park
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