1951 Map of Erie

About this map

The coal mining landscape of the Boulder Co Weld Co border dominates this mid-century survey, revealing a region defined by extraction and irrigation. Erie sits at the heart of the sheet, surrounded by a high density of named mines including the Erie Mine, Morrison Mine, and the Black Diamond Mine near the southern edge. The presence of numerous inactive shafts, such as the Tynan Mine and State Mine, suggests a period of transition for the local industry. This industrial character is balanced by a complex network of water management features, including the Lower Boulder Ditch and Baller Lake, which supported the agricultural development around Canfield and Lafayette. The Burlington and Chicago and Quincy railroad lines cut through the terrain, providing the essential link between these mining outposts and wider markets during the early 1950s.