PecosValley

Seymour

Gulf Coast

Carrizo–Wilcox(outcrop)

Hueco–MesillaBolson

Ogallala

Carrizo–Wilcox(subcrop)

Trinity(subcrop)

Trinity(outcrop)

Edwards–Trinity Plateau (subcrop)Edwards–Trinity Plateau (outcrop)

Edwards BFZ (outcrop)

Edwards BFZ (subcrop)

Major Aquifers of Texas

© Texas Almanac