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Calliham Unit Boat
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USGS1 data sourceUpdated Mar 2026
Nearby Ramps
Boat Ramp on Choke Canyon Reservoir
Choke Canyon Reservoir
Mason Point
Elm Creek - Choke Canyon Reservoir
Highway 99 Bridge
Frio River
Three Rivers - Choke Canyon Reservoir
Elm Creek - Choke Canyon Reservoir
Boat Ramp on Choke Canyon Reservoir
Choke Canyon Reservoir
Calliham Unit Boat is a public boat ramp on Elm Creek - Choke Canyon Reservoir in McMullen County, Texas (78007). GPS coordinates: 28.4823°N, 98.3532°W.