The road to the summit of Mount Fowlkes
Mount Fowlkes is a high mountain peak at an elevation of 2.030m (6,660ft) above the sea level, located in Jeff Davis County, Texas, United States.
The summit hosts the McDonald Observatory, an astronomical observatory built in 1932. It’s one of the world's leading centers for astronomical research, teaching, and public education and outreach. The road to the summit is paved with steep grades. It’s called Texas State Highway Spur 77 or Spur 77. Starting from TX-118 road, the ascent is 2.41km (1.5 mile) long. Over this distance the elevation gain is 136 meters. The average gradient is 5.64%, with a maximum gradient of 11,4%