1992 Map of Mc Allen

About this map

The Rio Grande defines the character of this border region, winding through a complex system of agricultural lands and wildlife sanctuaries. In the early 1990s, the landscape between Rio Grande City and Weslaco shows a distinct pattern of long, narrow tracts extending from the river, intersected by the Main Road and several irrigation channels. This era marks a significant concentration of conservation areas, including the Bentsen-Rio Grande Valley State Park and the Santa Ana National Wildlife Refuge, which preserve the native riparian brushland amidst the expanding urban footprints of Mc Allen and Pharr. To the north, the Yturria Oil Field and La Union Oil Field indicate the industrial weight of the region's petroleum sector, while the presence of the Main Floodway highlights the sophisticated water management required in this flood-prone delta.