 It is 45.6 km (28.3 miles) from the municipal seat of Tlaquiltenango.The town of Huautla is near the hill of the same name, which in turn gives its name to the "Biosphere Reserve of the Sierra of Huautla".This is the largest protected area in central Mexico, established on July 10, 1999 and declared a biosphere reserve by UNESCO in 2006.