Dallam Sherman Hansford Ochiltree Lipscomb

Hartley Moore Hutch-inson

Roberts Hemphill

Oldham Potter Carson Gray Wheeler

Deaf Smith Randall Armstrong Donley Collings-worth

SwisherCastroParmer Briscoe Hall Chil-dress

HaleLambBailey Floyd Motley Cottle

LubbockHockleyCoch-ran

Crosby Dickens King

LynnTerryYoakum Garza Kent Stone-wall

Knox

Haskell

Baylor

Throck-morton

Archer

WilbargerFoard

Hardeman

Clay

Jack Wise Denton

GraysonMontagueCooke

Wichita

Young

DawsonGaines Borden Scurry Fisher

MartinAndrews

LovingEl Paso Hudspeth Culberson

Reeves

Jeff DavisPecos

Presidio

Brewster

Terrell

Crockett

Val Verde

Sutton

Schleicher

Kimble

Menard

McCulloch

San Saba

Mason Llano

Gillespie

KerrEdwards

Kinney

Maverick

Uvalde

Real Bandera

Zavala

Dimmit

Medina

Frio

La Salle

Webb

Zapata JimHogg

Brooks

Hidalgo

Cameron

Willacy

Kenedy

Kleberg

Nueces

SanPatricio

BeeGoliad

Refugio

DeWittVictoria

Calhoun

Jackson

Lavaca

Caldwell

Lee

Milam

Burleson

Washington

FayetteColorado

Austin

Waller

FortBend

Brazoria

Harris

Montgomery

Grim

esBrazos

Robert-son

Falls

Lime-stone Freestone

Leon

MadisonWalker

SanJacinto

Chambers

LibertyHardin

Jefferson

Orange

Jasp

er

New

ton

PolkTylerTrinity

Houston

Anderson

Henderson

Smith

Chero-kee

Angelina

Nacog-doches

San

Augu

stin

e

Shelby

Rusk

Gregg

Wood UpshurCampFr

ankl

in Titus

Mor

ris

Bowie

Cass

Marion

Harrison

Panola

Sabine

Galveston

Gonzales

Wharton

Matagorda

Starr

McMullen

Duval JimWells

Atascosa

Bexar

Kendall

Comal

Guada-lupe

Wilson

LiveOak

Karnes

WinklerEctor Midland Glass-

cockSterling Coke Runnels Coleman

Brown Comanche

Erath Hood

Somervell

Johnson Ellis

HillBosque

HamiltonMills

Lampasas

CoryellMcLennan

BellBurnet

Williamson

Blanco Travis

Hays

Concho

TomGreenIrion

ReaganUptonCraneWard

Howard Mitchell Nolan

Jones

Taylor

Shackel-ford

Callahan

Stephens PaloPinto

Parker Tarrant Dallas

Collin

Fannin

Hunt

Rockwall

Kaufman VanZandt

Rains

Delta

Lamar RedRiver

Hopkins

Eastland

Aransas

Navarro

Bastrop

West Texas Bolsons

Marathon

Igneous

HickoryEllenburger-San Saba

Woodbine

Blossom

Nacatoch

Yegua-Jackson

Marble Falls

Queen City

Cen

tral T

exas

SpartaInla

nd C

oast

Plai

ns-P

ecos

Brackets link aquifers where three are layered in the same area.

Slanted lines indicate subcrop, where the water-bearing rock layer digs below other rock layers.

Brazos River Alluvium

Lipan

Dockum

Edwards-Trinity (High Plains)Blaine

Rita Blanca

Bone Spring-Victorio Peak

Rustler

Capitan Reef

Minor Aquifers of Texas

© 2010 Texas Almanac graphic.Source: Texas Water Development Board from the U.S. Geological Survey.