Paquime: Perhaps the World's First, City-Wide District Heating System

摘要

The high plains of northern Mexico seem to drift, lands too expansive for destinations with basins and ranges passing into the horizon. Here is the ancient city of Paquime, also called las ruinas Casas Grandes, a place renovated by master engineers and builders around 1060 A.D., and one that fell in ruins in 1340, as the Archaeological Conservancy notes. For a brief 56 years— from 1205 to 1261 A.D.—Paquime,Mexico, stood in its prime, about 280 km. northwest of todav's Chihuahua.