Historically, Texans have turned to the Texas General Land Office for maps and other tools used to organize information about the natural resources this state has to offer.Besides historical maps, research, and data, the land office today uses Geographic Information Systems (GIS), global positioning systems (GPS), and computer-aided design (CAD) systems to compile, analyze, and distribute the most accurate information possible about the location of natural and human-made resources. These tools support the business functions of the General Land Office and serve as critical tools in the study and protection of our state's valued resources. The Land Office website contains a collection of dynamic interactive mapping websites that give Texans access to the vast collection of spatial data available at the agency.
GIS Map Viewers
The GISWEB, an interactive mapping application, provides access to vast collections of land and energy related data at the Texas General Land Office. The GISWEB display upland and submerged Original Texas Land Survey boundaries, Permanent School Fund land, upland and coastal leases, oil and gas well locations, and current imagery.
Texas Coastal Sediments Geodatabase
The Texas Coastal Sediments Geodatabase (TxSed) is sediment related geospatial and geotechnical data. TxSed can be used to assist in identifying compatible sediment resources for proposed beach nourishment or habitat restoration projects, and can be used as an aid in the permitting/regulatory processes for such projects.
STORM - State of Texas Oil Spill Response Mapping ToolSpill Toolkit, EPA National Disaster Operational Workgroup, TABS Buoy Gulf of Mexico weather and new tools like the advanced drawing tool.
Homeowner Opportunity Program Area Locater Mapping Application
The Homeowner Opportunity Program (HOP) is a Disaster Recovery Housing Program through which income-qualified applicants who live in FEMA-designated “High Risk” areas or areas of high minority and/or poverty concentration may elect to rehabilitate or reconstruct their existing home or relocate to a safer and higher opportunity area.
CDBG Disaster Recovery Mapping System
This interactive tool displays the Community Development Block Grant Program information
GIS Map Data
Beach Access Points
Public beach access points. Mapped by the GLO in cooperation with coastal towns and counties.
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.
Coastal Leases (Polygonal Locations)
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.
Coastal Zone Boundary
The official boundary of the Texas Coastal Management Program (CMP). The area lying generally seaward of the coastal facility designation line, which is the line adopted under the Oil Spill Prevention and Response Act of 1991, to describe areas where oil spills are likely to enter tidal waters. The layer also includes wetlands landward of the coastal facility designation line, generally within one mile from the shoreline, along the extreme inland reach of certain tidal rivers and streams.
Colonial Waterbird Rookery Areas
Locations of waterbird rookery sites in the coastal counties of Texas. Information compiled by the Texas Colonial Waterbird Society.
Dispersant Use Pre-Approval Zone
Boundaries of pre-approved area for use of dispersant in oil spill response. Boundaries were created by combining the 10-meter offshore bathymetric contour and the three nautical mile line. The boundary follows whichever line is farthest offshore. Data are not to be used for navigation or for mapping at large scales.
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.
This layer contains basic information about active Hard Mineral Leases (minerals other than oil & gas) issued by or through the General Land Office. The information in this layer represents a snapshot in time. As new leases are added, expired, or terminated, they are removed from the active layer.
In-Situ Burn Exclusion Areas
Areas designated by the Oil Spill Regional Response Team VI where in-situ burns are prohibited.
Submerged lands granted with mineral reservations by the Texas legislature to Navigation Districts.
Oil & Gas Leases
Oil and Gas Leases managed by the Texas General Land Office.
Oil & Gas Units
Oil and Gas pooling agreements managed by the Texas General Land Office.
Locations of known oyster reefs.
Pipelines and Miscellaneous Easements
Pipelines located in state-owned submerged lands and other areas along the Texas Gulf Coast.
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.
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.
State Agency Lands
This layer contains parcels that have been identified as properties that are owned by different state agencies that have been reviewed to have a mineral interest whether all or in part. An in-depth research of the records would have to be performed to make an actual determination of mineral status. (The collection is not complete and is a work in progress for adding addition parcels.)
State Submerged Lands
State-owned tracts in offshore waters and coastal bays. These tracts are owned and leased by the GLO.
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.
Three Marine League Line
The boundary between state and federal jurisdiction located three marine leagues (approx. 10 miles) offshore in the Gulf of Mexico.
Three Nautical Mile Line
Line of demarcation three nautical miles offshore of the Texas coast in the Gulf of Mexico.