
Santa Rosa serves as a hub for this agricultural portion of the Rio Grande Valley, where a network of irrigation and drainage infrastructure like the Willacy Canal and the North Floodway defines the landscape. The map captures a transition of jurisdictions, as the borders of Hidalgo, Willacy, and Cameron counties converge near Zapata Ranch and the community of Sebastian. This area is characterized by smaller rural settlements and ranch sites connected by a grid of farm-to-market roads and county lines.
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This is the sole edition of this map. No revisions or reprints were ever made.
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