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Little Missouri River

Highlight • River

Little Missouri River

Mountain biking

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Hiking

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The Little Missouri River, a significant tributary of the mighty Missouri River, carves a 560-mile (900 km) path through the northern Great Plains of the United States. Rising in northeastern Wyoming, near the iconic Devils Tower, it flows northeastward across southeastern Montana, into South Dakota, and then northward through North Dakota. This remarkable waterway, with an elevation of approximately 783 meters at certain points, is renowned for its dramatic journey through the rugged badlands, particularly within Theodore Roosevelt National Park.

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    March 7, 2025

    Mountain biking

    Little only by comparison to the longest river in the US, the Little Missouri River flows for over 500 miles across Wyoming, Montana, South Dakota, and North Dakota. The river has played an important role in the for those living in the Great Plains since humans arrived in the area over 12,000 years ago. Today it can be enjoyed for its beauty as well as the multitude of recreational activities it supports such as fishing, kayaking, swimming, hiking, camping, and biking.

    July 22, 2025

    Hiking

    Little only by comparison to the longest river in the US, the Little Missouri River flows for over 500 miles across Wyoming, Montana, South Dakota, and North Dakota. The river has played an important role in the for those living in the Great Plains since humans arrived in the area over 12,000 years ago. Today it can be enjoyed for its beauty as well as the multitude of recreational activities it supports such as fishing, kayaking, swimming, hiking, camping, and biking.

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    Elevation 780 m

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    Monday 16 March

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    Location: Billings County, North Dakota, United States

    Frequently Asked Questions

    Is the Little Missouri River in Arkansas the same as the one in North Dakota?

    No, there are two distinct waterways named the Little Missouri River in the United States. This page primarily focuses on the 560-mile-long river that flows through Wyoming, Montana, South Dakota, and North Dakota, notably traversing Theodore Roosevelt National Park. The other Little Missouri River, often called the "Little Mo," is 147 miles long and located in southwest Arkansas, known for its clear waters, waterfalls, and whitewater rapids.

    Are there specific permits or fees required to access the Little Missouri River?

    Accessing the Little Missouri River often involves entering Theodore Roosevelt National Park, which typically requires an entrance fee. Specific permits may be needed for certain activities like backcountry camping or commercial use within the park. It's always best to check the official Theodore Roosevelt National Park website for the most current information on fees and permit requirements before your visit.

    What are the best ways to experience the unique geological features of the Little Missouri River badlands?

    The dramatic badlands topography, characterized by rugged landscapes and colorful sedimentary layers, is best experienced through hiking and scenic drives. Within Theodore Roosevelt National Park, numerous trails offer close-up views of the eroded siltstone, claystone, sandstone, and lignite coal formations. Scenic overlooks along park roads also provide panoramic vistas of the river carving through this ancient landscape.

    Are there any family-friendly activities or trails along the Little Missouri River?

    Yes, Theodore Roosevelt National Park offers several family-friendly options. Many shorter, less strenuous hiking trails are suitable for families, providing opportunities to explore the badlands and spot wildlife. Scenic drives through the park also allow families to enjoy the views and access various points of interest without extensive hiking. Always check trail difficulty and length to ensure it's appropriate for your family's abilities.

    Is the Little Missouri River area dog-friendly?

    Dogs are generally welcome in Theodore Roosevelt National Park, but with restrictions. They are permitted on paved roads, in campgrounds, and in picnic areas, but typically not on hiking trails or in park buildings. Service animals are an exception. Always keep dogs on a leash and be mindful of wildlife. Check the park's official pet policy for the most up-to-date guidelines.

    What kind of wildlife can I expect to see along the Little Missouri River?

    The Little Missouri River and its surrounding badlands are home to diverse wildlife. Visitors frequently spot iconic species such as bison, wild horses, and prairie dogs. Other animals you might encounter include deer, elk, coyotes, and various bird species, including golden eagles. Early mornings and late evenings are often the best times for wildlife viewing.

    What are the typical water levels like for paddling on the Little Missouri River?

    The Little Missouri River's water levels are highly seasonal and can fluctuate significantly due to runoff from badlands and other treeless landscapes. This means conditions for paddling can vary greatly throughout the year. It's crucial to check current water levels and weather forecasts before planning any kayaking or canoeing trips to ensure safe and enjoyable conditions.

    Where can I find accommodation or amenities near the Little Missouri River?

    The town of Medora, North Dakota, located near the South Unit of Theodore Roosevelt National Park, offers a range of accommodation options, including hotels, motels, and campgrounds. Medora also provides amenities such as restaurants, shops, and entertainment like the Medora Musical. Other nearby towns may offer additional services, but Medora is the primary hub for visitors to the park.

    Are there opportunities for fishing in the Little Missouri River?

    Yes, the Little Missouri River offers opportunities for fishing. While not as widely known for specific game fish as some other rivers, it supports various species. Anglers should be aware of local fishing regulations and obtain any necessary state fishing licenses before casting a line. The river's role in the Great Plains ecosystem has historically supported diverse aquatic life.

    What is the best time of year to visit the Little Missouri River for hiking?

    Spring and fall generally offer the most pleasant temperatures for hiking along the Little Missouri River, particularly within Theodore Roosevelt National Park. During these seasons, the weather is typically milder, and the landscapes can be quite vibrant. Summers can be very hot, and winters can be harsh with snow and ice, making hiking more challenging. Always check the weather forecast before heading out.

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