The small community of Hargill and the northeastern reaches of Edinburg define this portion of the Rio Grande Valley in the late 2010s. The landscape is characterized by a grid of agricultural and local roads, including FM 493, FM 490, and the more remote Brushline Rd. Water management is central to the area's geography, anchored by the Hargill Reservoir and several small ponds and wetlands scattered across the terrain. For those researching local families, the map identifies three distinct burial grounds: Hargill Cem, Cibilo Cem, and Cavazos Cem. Aviation activity is represented by the South Texas International Airport at Edinburg, located in the western portion of the quadrangle. The boundary between Hidalgo Co and Willacy Co runs along the eastern edge, marking the transition between these South Texas counties.
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This is the sole edition of this map. No revisions or reprints were ever made.
1922 · La Sal Vieja
USGS Topo · 1:62,500
1939 · Linn
USGS Topo · 1:62,500
1949 · Mc Allen
USGS Topo · 1:250,000
1953 · Brownsville
USGS Topo · 1:250,000
1954 · McAllen
USGS Topo · 1:250,000
1956 · La Sal Vieja
USGS Topo · 1:24,000
1956 · La Sal Vieja
USGS Topo · 1:62,500
1956 · Brownsville
USGS Topo · 1:250,000
1956 · Port Isabel
USGS Topo · 1:250,000
1957 · Lasara
USGS Topo · 1:24,000