San Idelfonso Tank
Reservoir in Starr County, Texas · on the USGS El Sauz quadrangle
26.62478, -98.80169
Maps that show San Idelfonso Tank
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El Sauz, TX
USGS topo, 2022
El Sauz, TX
USGS historical 15-minute topo (1938)
Regional Map - El Camino Real de los Tejas National Historic Trail
National Park Service Maps (public domain) · El Camino Real de los Tejas National Historic Trail
Bureau of Land Management Eastern States Overview map
BLM Eastern States (2019)
IFR Enroute Low Altitude Chart L-20 (U.S.)
FAA, 2026-10-29
IFR Enroute High Altitude Chart H-07 (U.S.)
FAA, 2026-10-29
Nearby
Name, class, county and location: USGS Geographic Names Information System (public domain).