Falcon Reservoir dominates the western edge of this South Texas landscape, where the international boundary between the United States and Mexico follows the submerged channel of the Rio Grande. The terrain is defined by a series of drainages, or arroyos, that feed into the reservoir, including Arroyo Leon, Arroyo Clareño, and Arroyo Loma Blanca. These seasonal watercourses carve through the brush country, occasionally punctuated by man-made features such as El Rancho Tank and Juanes Tank, which are vital for livestock in this semi-arid region.
23 named features on this map. Tap any name to fly to it.
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This is the sole edition of this map. No revisions or reprints were ever made.
1938 · Falcon
USGS Topo · 1:62,500
1949 · Mc Allen
USGS Topo · 1:250,000
1954 · McAllen
USGS Topo · 1:250,000
1956 · Zapata
USGS Topo · 1:62,500
1956 · Arroyo Clareno
USGS Topo · 1:62,500
1957 · Mc Allen
USGS Topo · 1:250,000
1962 · McAllen
USGS Topo · 1:250,000
1965 · Lopeno
USGS Topo · 1:24,000
1965 · Beckwith Arm
USGS Topo · 1:24,000
1979 · Zapata
USGS Topo · 1:24,000