Old John Tank

Reservoir in Hudspeth County, Texas · on the USGS Diablo Canyon East quadrangle

31.42455, -105.56029

Maps that show Old John Tank

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Diablo Canyon East, TX — USGS 7.5-minute topo (2022)

Diablo Canyon East, TX

USGS topo, 2022

Finlay Mountains, TX — USGS historical 15-minute topo (1943)

Finlay Mountains, TX

USGS historical 15-minute topo (1943)

IFR Enroute Low Altitude Chart L-06 (U.S.) — FAA, 2026-10-29

IFR Enroute Low Altitude Chart L-06 (U.S.)

FAA, 2026-10-29

IFR Enroute High Altitude Chart H-06 (U.S.) — FAA, 2026-10-29

IFR Enroute High Altitude Chart H-06 (U.S.)

FAA, 2026-10-29

IFR Enroute High Altitude Chart H-04 (U.S.) — FAA, 2026-10-29

IFR Enroute High Altitude Chart H-04 (U.S.)

FAA, 2026-10-29

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