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Copper Canyon / Batopilas - Lost Cathedral 3Photos by Jeff Robbins, Peter Arnold and Stan HustonFebruary 2002 |
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| The church has three domes. The domes and some of the exterior walls have been plastered but the original building was built entirely of fired brick and mortar. Bricks were molded, dried and fired on site while calspar taken from the silver mines was burned with river sand to make limestore and sand mortar. |