The Bisti/De-Na-Zin Wilderness is managed by the Bureau of Land Management. The area is a landscape of badlands which offers some of the most unusual scenery found in the Four Corners Region. The rock formations are made of interbedded sandstone, shale, mudstone, coal, and silt that have weathered to form pinnacles, spires, cap rocks, and other unusual forms. Fossils also are found in the sedimentary layers of rock. Hiking, photography, and backpacking are popular activities in the wilderness. However, there are no water sources available so visitors must carry all the water they will need for the duration of their trip. As with all wilderness areas, the Bisti/De-Na-Zin is closed to motorized vehicles and all mechanical forms of transportation including mountain bikes. Also prohibited are campfires, collecting fossils or petrified wood, climbing on delicate geologic features, and trespassing on adjacent tribal lands. Although the wilderness is open year-round, both the winter and summer can offer extreme temperatures and conditions. Parking areas and access to the Bisti and De-Na-Zin is off regularly maintained roads, however, they are not paved. County Road 7500 to De-Na-Zin can become extremely slick and impassible when wet. Conditions of roads can change at any time due to weather.