The Pachuca Range (Sierra de Pachuca) is a mountain range in the Sierra Madre Oriental of central Mexico, in the state of Hidalgo.
[3] The earliest recorded settlement name is "Pachuquillo" a diminutive of Pachuca.
The Pachucas form the northeastern boundary of Mezquital Valley.
[5] The surface rocks are volcanics beginning with Miocene andesites and microdiorites followed by alkaline basalts.
[6][7] The rocks are highly mineralized and contain ores of gold, silver, lead zinc, mercury and other metals.