194x116 Bull Bison-Ralston

North American Bison

Bison, also known as buffalo, once numbered in the tens of millions and roamed freely across the Great Plains

What's Happening at The Hill!

Visitor Center Hours

150x118 MGraue Snowshoeing

The visitor center will be open the second and fourth Saturday of the month January - March from noon to 4 pm. Come out and explore Sullys Hill this winter!

Winter Access

Sullys Hill NGP is open 8 am to sunset year round. The auto tour route is open May through September. Access to the visitor center parking lot and hiking trails is available year round.

Upcoming Events

Upcoming Events

Snowshoeing at the Refuge! Available January-March.

Event flyer

About the Complex

Devils Lake Wetland Management District

Sullys Hill National Game Preserve National Game Preserve is managed as part of the Devils Lake Wetland Management District.

Read more about the complex
About the NWRS

National Wildlife Refuge System


The National Wildlife Refuge System, within the U.S. Fish and Wildlife Service, manages a national network of lands and waters set aside to conserve America's fish, wildlife, and plants.

Learn more about the NWRS