South Reservoir
Reservoir in Hidalgo County, Texas · on the USGS Linn Siding quadrangle
26.58393, -98.17305
Maps that show South Reservoir
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Linn Siding, TX
USGS topo, 2022

Linn, TX
USGS historical 15-minute topo (1939)

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
Name, class, county and location: USGS Geographic Names Information System (public domain).