Waubonsie State Park is a

state park State parks are parks or other protected areas managed at the sub-national level within those nations which use "Federated state, state" as a political subdivision. State parks are typically established by a state to preserve a location on accou ...

in Fremont County,

Iowa Iowa ( ) is a U.S. state, state in the upper Midwestern United States, Midwestern region of the United States. It borders the Mississippi River to the east and the Missouri River and Big Sioux River to the west; Wisconsin to the northeast, Ill ...

United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...

, located in the

Loess Hills The Loess Hills are a formation of wind-deposited loess soil in the westernmost parts of Iowa and Missouri, and the easternmost parts of Nebraska and Kansas, along the Missouri River. Geology The Loess (, , or ) Hills are generally located be ...

region. It is named for Chief Wabaunsee of the

Potawatomi The Potawatomi (), also spelled Pottawatomi and Pottawatomie (among many variations), are a Native American tribe of the Great Plains, upper Mississippi River, and western Great Lakes region. They traditionally speak the Potawatomi language, ...

people. Waubonsie State Park is located in the unique Loess Hills, a landform found only along the

Missouri River The Missouri River is a river in the Central United States, Central and Mountain states, Mountain West regions of the United States. The nation's longest, it rises in the eastern Centennial Mountains of the Bitterroot Range of the Rocky Moun ...

in Iowa and

Missouri Missouri (''see #Etymology and pronunciation, pronunciation'') is a U.S. state, state in the Midwestern United States, Midwestern region of the United States. Ranking List of U.S. states and territories by area, 21st in land area, it border ...

. As glaciers melted 14,000 to 28,000 years ago, the Missouri River became a major channel for huge volumes of water and sediment during the summer. In winter, the volume of the meltwater was reduced, leaving the deposited sediments exposed to the wind. These sediments of silt, clay and very fine sand particles called "

loess A loess (, ; from ) is a clastic rock, clastic, predominantly silt-sized sediment that is formed by the accumulation of wind-blown dust. Ten percent of Earth's land area is covered by loesses or similar deposition (geology), deposits. A loess ...

," were then carried by strong westerly winds and deposited when these winds encountered the steep slopes of the east valley wall. There are several distinctive features of loess hills topography. Because of the fine texture of the soil, deep, steep-sided and very narrow ridge tops have been eroded in the hills. Small, step-like terraces called "cat steps" resulting from repeated slipping of the soil can be seen on many west-facing slopes. Since the soil drains rapidly, nearly vertical cuts can be made in the soil without erosion. The unique topography of the park resembles the "badlands" of the west and harbors plants like the yucca which are normally found in more arid climates.

Facilities

The park offers picnicking, a scenic picnic shelter, and camping. There are of foot trails and of equestrian trails winding along ridges down into gorges and valleys. The Sunset Ridge Interpretive Trail provides information about the park's plants and trees. Waubonsie State Park is a site on the

Lewis and Clark National Historic Trail The Lewis and Clark National Historic Trail is a route across the United States commemorating the Lewis and Clark Expedition of 1804 to 1806. It is part of the National Trails System of the United States. It extends for some from Pittsburgh, ...

References

External links

Waubonsie State Park
Iowa Department of Natural Resources
Waubonsie State Park Map
Iowa Department of Natural Resources {{authority control State parks of Iowa Protected areas of Fremont County, Iowa Protected areas established in 1926 1926 establishments in Iowa