OFallon Creek

Near Glendive, Montana

Map of OFallon Creek

O'Fallon Creek flows through the badlands and prairie of eastern Montana near Glendive before joining the Yellowstone River. This prairie stream offers warmwater fishing for channel catfish, smallmouth bass, and northern pike in a remote setting far from the crowded trout waters of western Montana. The creek winds through rugged terrain similar to nearby Makoshika State Park, with eroded buttes and exposed fossil beds creating a striking landscape. Spring and fall provide the best fishing conditions before summer heat impacts water quality. Access is limited through private ranch land, with county road crossings providing the primary public entry points. The O'Fallon Creek area offers solitude and a chance to experience Montana's eastern prairie ecosystem, including mule deer, pronghorn, and various bird species. This is exploratory fishing territory for anglers willing to venture off the beaten path and experience a different side of Montana fishing.