Willow Flats Sump Camping Area

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Last Updated: December 5, 2025

Willow Flats Sump Camping Area is located in the Malheur National Wildlife Refuge in southeastern Oregon.


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Summary

The campground is situated alongside the Donner and Blitzen River and offers stunning views of the surrounding mountains and wetlands. The area is home to a diverse range of wildlife, including deer, coyotes, and a variety of bird species. One of the nearby points of interest is the historic Diamond Craters, a series of volcanic craters that can be explored by visitors.

The campground has ten first-come-first-served campsites available and offers several amenities, including fire rings, picnic tables, and vault toilets. There is no drinking water available on-site, so visitors are advised to bring their own.

An interesting fact about the area is that the Malheur National Wildlife Refuge is one of the largest wetland ecosystems in the state of Oregon, covering over 187,000 acres. It is also a popular spot for birdwatching, with over 300 species of birds recorded in the area.

The best time of year to visit Willow Flats Sump Camping Area is during the summer months when temperatures average around 80°F during the day and drop to around 40°F at night. However, visitors should be aware that the area can be prone to thunderstorms during the summer months.

       

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Camping Essential Practices

Pack It In, Pack It Out
Take all trash, food scraps, and gear back with you to keep campsites clean and protect wildlife.
Respect Wildlife
Observe animals from a distance, store food securely, and never feed wildlife to maintain natural behavior and safety.
Know Before You Go
Check weather, fire restrictions, trail conditions, and permit requirements to ensure a safe and well-planned trip.
Minimize Campfire Impact
Use established fire rings, keep fires small, fully extinguish them, or opt for a camp stove when fires are restricted.
Leave What You Find
Preserve natural and cultural features by avoiding removal of plants, rocks, artifacts, or other elements of the environment.

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