The Bisti/De-Na-Zin Wilderness is a rolling landscape of badlands which offers some of the most unusual scenery found in the Four Corners Region. Time and natural elements have etched a fantasy world of strange rock formations made of interbedded sandstone, shale, mudstone, coal, and silt. The weathering of the sandstone forms hoodoos - weathered rock in the form of pinnacles, spires, cap rocks, and other unusual forms. Fossils occur in this sedimentary landform. Translated from the Navajo language, Bisti (Bis-tie) means "a large area of shale hills." De-Na-Zin (Deh-nah-zin) takes its name from the Navajo words for "cranes". Because of the climate, most of the visits occur in the late spring/early summer and in the fall. Since this is a Wilderness Area, it is closed to motorized vehicles and mechanical forms of transportation (mountain bikes included). Also prohibited are campfires, collecting fossils or petrified wood, climbing on delicate geologic features, traveling in groups of more than eight people, and trespassing on adjacent tribal lands. Permits are required for uses such as grazing, scientific research, and commercial guiding. Though these trailheads are off regularly maintained roads, they are not paved. County Road 7500 can become extremely slick and impassible when wet. Conditions of roads can change at any time due to weather. Drivers should avoid dirt roads during rain or snow. Drivers should be cautious of wash-out following rain or snowmelt. Though camping in the Wilderness is a rewarding experience, there are no water sources. Visitors must carry all the water they will need for the duration of the trip.