1956 Map of Progreso
USGS Topo · Published 1970About this map
The Rio Grande defines the shifting international boundary in this mid-century survey, where complex river bends and oxbow lakes like Lion Lake and Moon Lake mark the landscape. The intricate water management of the Lower Rio Grande Valley is visible through the Main Supply Canal, the Mercedes District Settling Basin, and an extensive network of elevated ditches. Along the river, historical land divisions such as the Horcon Tract and several numbered bancos, including Santa Margarita Banco No 30, reflect the area's unique geopolitical history and river-driven boundary changes.
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Map Details
Editions of this 1956 Progreso Map
4 editions found
Historical Maps of Weslaco Through Time
7 maps found
