Huasca was the home of three big ore processing plants, property of Pedro Romero de Terreros, First Count of Regla: San Miguel, San Antonio and Santa María Regla. The first one was the place where the Count spent most of the year and where he passed away in 1781. The great mining boom of the region barely lasted 20 years, during those years Huasca had more population than Tulancingo and Pachuca, economy was reactivated: the mules that arrived loaded with mineral to the haciendas went back to Pachuca with merchandise such as wood, forage, grease, leather bags and an alcoholic drink known as pulque, without having to raise their cost. A “church, a lodging house and a country house for the Count of Regla” were built in this period. Although this mining boom did not last too long, it inherited to Huasca “an exciting past of which only few places can brag of.