 Mexican remittances helped to build the Wesleyan Chapel in Redruth, Cornwall, in the 1820s.The Pachuca-Mineral del Monte silver mining district is at the southern end of a metalliferous mineral zone that extends northwest to encompass Mineral del Chico to the Zimapan lead-mining district to the northwest.The ore deposits occur in the volcanic Tertiary Pachuca Group, principally andesite-rhyolite flow series with intervening tuff beds.