Skip to content
Cartahaven

Bedrock geology and hydrostratigraphy of the Edwards and Trinity aquifers within the Driftwood and Wimberley 7.5-minute quadrangles, Hays and Comal Counties, Texas — USGS Scientific Investigations Map

by USGS Geologic Maps (public domain) · Texas, US

Free

A free GeoPDF for offline GPS in the Cartahaven app, with free updates. How it works offline

Older edition. This is the 2017 edition from the U.S. Geological Survey. A newer one may have been published since; check the agency's page for current rules and routes before relying on it.

Email me when a new edition is out

Bedrock geology and hydrostratigraphy of the Edwards and Trinity aquifers within the Driftwood and Wimberley 7.5-minute quadrangles, Hays and Comal Counties, Texas — USGS Scientific Investigations Map
Bedrock geology and hydrostratigraphy of the Edwards and Trinity aquifers within the Driftwood and Wimberley 7.5-minute quadrangles, Hays and Comal Counties, Texas. USGS Scientific Investigations Map 3386 (2017), the georeferenced PDF of the map sheet: rock units, faults and structure on a topographic base, with your GPS position shown offline. Public domain map from the U.S. Geological Survey, republished unmodified from https://pubs.usgs.gov/publication/sim3386. This store is not affiliated with or endorsed by the USGS.

What you get

  • Your GPS position on the map. A blue dot on this official sheet shows where you are.
  • Works with no signal. Download it once; the map and your GPS position keep working with no cell signal.
  • Tracks, placemarks and photos. Record where you go, drop pins, and export GPX, KML or GeoJSON.
  • Free updates. When a new edition is published here, it’s yours at no cost.
  1. 1Tap “Get this map”: it’s added to your free account.
  2. 2Open the Cartahaven app on your phone and sign in.
  3. 3Tap “My purchases” (“Get my maps” before you sign in). It’s on your phone, ready offline.

The app runs on iPhone, Android and in desktop browsers. Install it · How offline GPS works

Where this map covers

Named places on this map

1 named feature inside the Bedrock geology and hydrostratigraphy of the Edwards and Trinity aquifers within the Driftwood and Wimberley 7.5-minute quadrangles, Hays and Comal Counties, Texas — USGS Scientific Investigations Map sheet, from the USGS Geographic Names Information System. Each one links to every map that shows it.

Gaps, arches and other landforms

Elevations are the USGS 3DEP ground elevation at the named point, rounded; a summit's surveyed height can differ a little.

More maps of Texas.

GeologicalHikinggeologygeologic map

Maps nearby

More maps around here ›
Driftwood, TX — USGS 7.5-minute topo (2022)

Driftwood, TX — USGS 7.5-minute topo (2022)

USGS Topo Maps (public domain) · Texas

Public domain

Free
Wimberley, TX — USGS 7.5-minute topo (2022)

Wimberley, TX — USGS 7.5-minute topo (2022)

USGS Topo Maps (public domain) · Texas

Public domain

Free
IFR Enroute Low Altitude Chart L-19 (U.S.) — FAA, 2026-10-29

IFR Enroute Low Altitude Chart L-19 (U.S.) — FAA, 2026-10-29

FAA IFR Enroute Charts (public domain)

Public domain

Free
IFR Enroute High Altitude Chart H-07 (U.S.) — FAA, 2026-10-29

IFR Enroute High Altitude Chart H-07 (U.S.) — FAA, 2026-10-29

FAA IFR Enroute Charts (public domain)

Public domain

Free
U.S. Fish and Wildlife Service Alligator Snapping Turtle Range (2024)

U.S. Fish and Wildlife Service Alligator Snapping Turtle Range (2024)

Fish & Wildlife Service Refuge Maps (public domain)

Public domain

Free
Bureau of Land Management Eastern States Overview map — BLM Eastern States (2019)

Bureau of Land Management Eastern States Overview map — BLM Eastern States (2019)

BLM Recreation Maps (public domain) · Eastern States

Public domain

Free

Version history

  1. Version 1 · Nov 3, 2026 · 70.2 MB