Geographic Information Systems Data
from the Texas General Land Office
All data are in the Geographic spatial projection (latitude/longitude decimal degrees) and are presented in ESRI Arc/Info coverage export file and/or ArcView shape file formats. Files are compressed using gzip or WinZip utilities (both can be uncompressed using WinZip). Shape files may be viewed using ESRI's free viewing software, ArcExplorer. For a sample image of each dataset, click on the thumbnail image next to the description of the dataset.
Base Map Data
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County
Boundaries Boundaries and names of the 254 Texas counties. Digital boundaries provided by the Texas Commission on Environmental Quality (TCEQ). |
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Hydrography-General
(1:24,000 scale) Major water features (major streams, lakes, rivers, and bays) used in statewide mapping. Features extracted from Texas Department of Transportation (TxDOT) digital county map files. |
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Hydrography-General
(1:2,000,000 scale) Major water features used in statewide mapping. Edited version of U.S. Geological Survey dataset. |
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Hydrography-Detailed
(1:24,000 scale) Complete water features (all streams, lakes, rivers, and bays) in Texas. Features extracted from Texas Dept. of Transportation (TxDOT) digital county map files. In separate arc and polygon files. NOTE: This is a large dataset. |
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Hydrography-Coastal
(1:24,000 scale) Water features (streams, lakes, rivers, and bays) in the coastal counties of Texas compiled from various sources. NOTE: This is a large dataset. |
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Place
Names (1:750,000 scale) Names of major cities, towns, rivers, and lakes in Texas. Suitable for statewide maps. |
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Place
Names - Populated Places |
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Place
Names - Complete Names of other geographic features in Texas, including landforms, buildings, ranches, and other landmarks. Suitable for mapping at various scales. |
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Railroads Railroad network for entire state at 1:24,000 scale. From (TxDOT) digital county map series files. |
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Roads/Highways
(USDOT) State and federal highways in Texas mapped at 1:24,000 scale. Data from the U.S. Dept. of Transportation (USDOT). |
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Shoreline
(NOAA) Texas Gulf Coast shoreline data provided by the National Oceanic and Atmospheric Administration (NOAA). An older version at 1:80,000 scale is also available. |
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State
Submerged Lands State-owned tracts in offshore waters and coastal bays. These tracts are owned and leased by the GLO. |
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Topography Topography (shaded relief) in Arc/Info GRID format. Derived from U.S. Geological Survey (USGS) 1:250,000-scale digital elevation model data. NOTE: This is a large dataset. |
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Urban
Areas Boundaries of urbanized areas in the state of Texas at 1:24,000 scale. |
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City
Limits Boundaries of municipalities in Texas. Compiled from TxDOT digital county map files. |
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Ecological Regions (TPWD) Geographic regions of Texas based on ecological and cultural factors; data provided by Texas Parks and Wildlife Department (TPWD). |
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Geologic
Atlas of Texas |
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National
Parks National Park Service (NPS) areas; data provided by the NPS. |
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Rainfall Average annual rainfall for all areas of Texas; data provided by Texas Water Development Board (TWDB). |
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SSURGO
Soils Data Digital SSURGO soils data available for selected Texas counties. Data provided by USDA Natural Resources Conservation Service (NRCS). To request data, please contact TNRIS |
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State
Parks/Wildlife Management Areas (TPWD) Boundaries of state parks and wildlife management areas owned or managed by the TPWD. Data provided by TPWD. |
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Vegetation
Types (TPWD) Vegetation types occurring in Texas mapped by McMahan et al. (1987) and digitized by TPWD personnel. |
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Roads/Highways
(TxDOT) TxDOT roads, streets and street types for all Texasl counties. Extracted from TxDOT digital county map files. |
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Oil
& Gas Leases Oil and gas leases located in the submerged areas of the Texas Gulf Coast. |
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Oil
& Gas Lease Sale Nominations Nominations for the upcoming oil/gas sealed bid lease sale (tracts located in bays and the Gulf of Mexico). This dataset is updated one month prior to each lease sale. |
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Oil
& Gas Pooling Agreements/Units Oil and gas pooling agreements located in the submerged areas of the Texas Gulf Coast. |
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| For more information about these data layers, please contact Alex Sanders of the GLO's Energy Resources Division. | |||
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Coastal
Leases (Point Locations) Locations of structures and activities permitted by the GLO within state-owned land and waters. Includes features represented by a single point location, such as piers, docks, breakwaters, and shoreline protection projects. |
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Coastal
Leases (Polygonal Areas) Locations of structures and activities permitted by the GLO within state-owned land and waters. Includes areal features such as dredging areas, parks, mitigation projects, and conservation easements. |
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Pipelines and Miscellaneous Easements Pipelines located in state-owned submerged lands and other areas along the Texas Gulf Coast. |
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Anchorage
Areas Offshore anchorage areas. Digitized from NOAA maps. |
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Aquaculture
Facilities Locations of aquaculture operations on the Texas coast (incomplete). |
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Audubon
Sanctuaries Coastal tracts containing waterbird colonies leased to the National Audubon Society. |
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Bathymetry Bathymetric data for Texas bays and offshore waters. Locations generated from latitude/ longitude coordinates provided by NOAA. Data may not be current and are not to be used for navigation. |
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Bathymetry
(6-foot Depth) Areas of Texas bays and offshore waters greater than 6 feet in depth. |
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Beach
Access Points Public beach access points. Mapped by the GLO in cooperation with coastal towns and counties. |
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Boat
Ramps Locations of public boat ramps on the Texas coast. Information compiled by the TPWD Coastal Fisheries Division. |
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City
and County Parks Selected city and county parks on the coast. Compiled from TxDOT digital county map files. |
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Colonial
Waterbird Rookery Areas Locations of waterbird rookery sites in the coastal counties of Texas. Information compiled by the Texas Colonial Waterbird Society. |
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Dispersant
Use Pre-Approval Zone |
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Environmental
Sensitivity Index Shoreline Shoreline of Texas with Environmental Sensitivity Index classification (sensitivity of shoreline habitats to oil contamination and removal). Classification conducted by the University of Texas Bureau of Economic Geology. |
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Gulf
Intracoastal Waterway/Ship Channels Dredged shipping channels in coastal waters. Digitized from engineering maps provided by U.S. Army Corps of Engineers. |
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Heliports Heliport facilities in coastal counties. Locations provided by the TxDOT Aviation Division. |
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In-Situ
Burn Exclusion Areas Areas designated by the Oil Spill Regional Response Team VI where in-situ burns are prohibited. |
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Marinas Public (and some private) marinas on the Texas coast. |
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National
Marine Sanctuary Boundary of Flower Garden Banks National Marine Sanctuary. Digitized from 1:240,000-scale NOAA maps. |
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National
Wildlife Refuges Approximate boundaries of national wildlife refuge lands. Digitized from U.S. Fish and Wildlife Service (USFWS) maps. |
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Offshore
Lease Blocks Boundaries of lease blocks in federal waters of the Gulf of Mexico Outer Continental Shelf Region. Data provided by the U.S. Minerals Management Service (MMS). |
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Offshore
Oil/Gas Platforms |
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Oyster Reefs (Galveston Bay System) Oyster reef distribution in the Galveston Bay system. Mapped using pole sampling by Dr. Eric Powell of Texas A&M University for the Galveston Bay Estuary Program. |
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Oyster Reefs (San Antonio Bay System) Oysters reefs mapped by the TPWD Coastal Fisheries Division in the San Antonio Bay System. |
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Place
Names (1:24,000 scale) USGS Geographic Names annotation edited for display on 1:24,000-scale maps of coastal counties. |
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Priority
Protection Habitat Areas Priority coastal habitat areas to be protected during oil or hazardous material spills on the Texas coast. Areas were identified and prioritized by TPWD and GLO personnel in cooperation with other entities. |
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Shipping
Safety Fairways Shipping safety fairways in the western Gulf of Mexico. Digitized from NOAA maps. |
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Species/Habitats Coastal distribution of animals, plants and habitats potentially at risk from oil spill damage or response activities. Mapped as part of a joint project involving GLO, TPWD and other entities. |
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State
Coastal Preserves GLO/TPWD coastal preserve areas; digitized from state tract maps. |
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Three
Marine League Line The boundary between state and federal jurisdiction located three marine leagues (approx. 10 miles) offshore in the Gulf of Mexico. |
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Three
Nautical Mile Line Line of demarcation three nautical miles offshore of the Texas coast in the Gulf of Mexico. |
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U.S.
Coast Guard Stations Locations of USCG facilities on the Texas coast. |
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Washover
Areas Beach washover areas mapped by the University of Texas Bureau of Economic Geology. |
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Coastal
Barrier Resource System Undeveloped coastal barrier islands mapped by the U.S. Fish and Wildlife Service. |
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Coastal
Management Zone Boundary Inland extent of areas subject to regulation under the Texas Coastal Management Program. |
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Critical
Erosion Areas Rapidly eroding shorelines along the Texas Gulf Coast, determined from shoreline erosion data collected by the University of Texas Bureau of Economic Geology. |
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Dredged
Material Placement Sites Areas designated by the U.S. Army Corps of Engineers for placement of spoil from dredging of ship channels and the Intracoastal Waterway. |
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Hard
Substrate Reefs (Baffin Bay/Laguna Madre) Locations of hard bottom communities in coastal bays (Baffin Bay and adjacent Laguna Madre only). Digitized from NOAA nautical charts. |
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Land
Use/Land Cover Imagery Landsat Thematic Mapper imagery classified by land cover and vegetation types available for coastal Texas counties. |
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National
Register of Historic Places Historic structures and sites listed in the National Register of Historic Places located in coastal counties of Texas. |
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National
Wetlands Inventory Data Wetland/ land cover data mapped by the U.S. Fish and Wildlife Service (USFWS). Data classified from 1992-93 aerial photography by the USFWS. Historical data (pre-1992) available by request for some areas. |
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Navigation
Districts Boundaries of land and coastal bay areas owned by navigation districts. |
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Seagrass
Areas Seagrass beds compiled from TPWD sample data (Redfish, Aransas and Corpus Christi Bays) and areas of submerged vegetation mapped by the USFWS National Wetland Inventory. May not depict all seagrass areas on the Texas coast. |
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State
Tracts with Resource Management Codes State-owned tracts in offshore waters and coastal bays, with codes added that reflect restrictions and concerns associated with leasing of these tracts. |
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Waters
of the Open Gulf of Mexico State-owned area of the open Gulf of Mexico. |
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Waters
Under Tidal Influence Coastal bays and riverine estuaries within limit of tidal influence. Derived from submerged lands dataset combined with TCEQ designated stream segments. Useful only at small map scales.To request data, please contact TCEQ |
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For other GIS-related data please visit the GLO's Natural Resources Inventory data page or the home page of the Texas Natural Resources Information System, the state's clearinghouse and referral center for natural resource data.
