Introduction to the Changsha Mountain Bike Challenge Base: Black Elk Peak has an altitude difference of more than 500 meters due to its good location and mountain terrain conditions. The mountain is high and the slope is steep. It is 13 kilometers long from the forest park gate to the peak, and the mountain road is winding. It is winding and winding because of its long and steep slopes, especially the 1,200-meter peak road, which has sharp turns and steep slopes. The slope in some areas is nearly 70°, and the height difference is 150 meters. It is extremely challenging and has become a well-known road in Hunan Province. The mountain biking base is the first choice destination for mountain biking enthusiasts in Changsha.