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Strategic Mapping Program (StratMap)

State-Wide Digital Map Data

How StratMap layers are usedThe Strategic Mapping Program was established in 1997 as a cost-saving measure to produce, maintain and enhance statewide digital geographic data layers. StratMap Program Purpose:
  • Establish and maintain a common base map for the State of Texas.
  • Combine funding from state and federal sources to lower costs and avoid duplication.
  • Continuously improve the quality and accuracy of data.
  • Develop data using national and international standards to ensure compatibility.

WHAT IS AN ORTHOIMAGE?

An Orthoimage is a digital aerial photograph with the same accuracy and characteristics of a map. Orthoimagery is created by using sophisticated computer software combined with other data sources to remove image distortion caused by camera tilt, optical lens anomalies and topography features. Distances, bearings, and area calculations can all be measured on Orthoimagery.

TEXAS ORTHOIMAGERY PROGRAM (TOP)

The National Agriculture Imagery Program (NAIP) acquires imagery during the agricultural growing seasons (spring and summer months for leaf-on coverage) in the continental U.S. A primary goal of the NAIP program is to provide digital ortho photography to the public within a year of acquisition. Each image typically covers about 1/4 of a USGS Quadrangle. These images are generally referred to as Digital Orthophoto Quarter Quads (DOQQ’s)

AVAILABLE ORTHOIMAGERY FORMATS

  • 1995 DOQ's (CIR) - 1 meter pixels – MrSID Format
  • 2004 NAIP (CIR) - 1 meter pixels - MrSID Format
  • 2005 NAIP (Natural Color) - 2 meter pixels - MrSID Format
  • 2006 NAIP (CIR) - 2 meter pixels - MrSID Format
  • 2008 - 2009 NAIP (Natural Color and CIR) – 1/2 meter pixels – jpeg2000 (JP2) Format
  • 2010 NAIP (Natural Color) – 1 meter pixels – jpeg2000 (JP2) format
Texas Orthoimagery data are available through TNRIS as a download or as a service option.

ADDITIONAL RESOURCES

* CURRENT ORTHOIMAGERY STATEMENT OF WORK (SOW) FOR TEXAS Farm Services Agency: http://www.fsa.usda.gov/FSA/apfoapp?area=home&subject=prog&topic=nai

Coastal Orthoimage

Port Aransas, Texas Coastal Orthoimage Near Port Aransas Coastal Orthoimage Near Port Aransas Near Port Aransas, Texas Coastal Orthoimage Near Port Aransas Coastal Orthoimage Near Port Aransas

County Orthoimage

Collin County, fastest growing county in Texas Collin County Orthoimage Collin County Orthoimage Collin County Orthoimage Collin County Orthoimage

Panhandle Orthoimage

Center pivot irrigation in Texas Center pivot irrigation in Texas Panhandle Center pivot irrigation in Texas Panhandle

What is Lidar?

Light Detection and Ranging (Lidar) is a technology that utilizes lasers to measure the distance from an airborne sensor (such as an airplane) to points on the ground. This creates an accurate 3-dimensional representation of the earth’s surface. Lidar goes beyond traditional bare earth digital elevation models (DEMs) by producing point cloud information that can be classified into existing features such as vegetation and man-made structures (See Examples below).

LIDAR ELEVATION FOR TEXAS

Various forms of elevation data exist for Texas. Forms of these data include digital contour lines (hypsography), digital elevation models, and the latest elevation technology that involves airborne sensor technology and is known as Light Detection And Ranging (Lidar). This technology uses a laser and sensor to transmit and receive pulses reflected from surfaces. These return pulses form a point cloud which represents elevation heights of features such as vegetation, buildings, and bare earth (ground).

* CURRENT LIDAR STATEMENT OF WORK (SOW) FOR TEXAS

Available LiDAR data for Texas.

AVAILABLE Lidar FORMATS

Lidar products generally include:
  • LAS file (includes x, y, return, intensity, elevation parameters)
  • Intensity Images
  • DEM bare earth elevations
  • Hydro-enforced breaklines and metadata

To order LiDAR data, click the button below:

Order Data

QAQC Reports

2011

Area Source Report link
Comal, Guadalupe FEMA Download Report
Liberty FEMA Download Report
Parker FEMA Download Report
Montague, Cooke, Grayson, Wise TNRIS Download Report
Burnet, Bell, McLennan TNRIS Download Report
Newton, Sabine, Shelby TNRIS Download Report
Calhoun USGS Download Report
Hidalgo USGS Download Report
Nueces USGS Download Report
Willacy USGS Download Report

2010

Area Source Report link
Austin, Waller TNRIS Download Report
Bexar TNRIS Download Report
Lee, Milam TNRIS Download Report
McMullen TNRIS Download Report
Leon, Madison TNRIS

2009

Area Source Report link
Grand Prairie Grand Prairie Download Report
Dallas TNRIS Download Report
Goliad TNRIS Download Report
Tarrant TNRIS Download Report
Zapata TNRIS Download Report

2007

Area Source Report link
CAPCOG CAPCOG Download Report
Bastrop CAPCOG Download Report

2006

Area Source Report link
Aransas, Refugio FEMA Download Report
Brazoria FEMA Download Report
Brazoria (revised)/td> FEMA Download Report
Calhoun FEMA Download Report
Calhoun (revised) FEMA Download Report
Chamber FEMA Download Report
Chamber (revised) FEMA Download Report
Galveston FEMA Download Report
Jackson FEMA Download Report
Jackson (revised) FEMA Download Report
Jefferson FEMA Download Report
Jefferson (revised) FEMA Download Report
Matagorda FEMA Download Report
Orange FEMA Download Report
San Patricio FEMA Download Report
Victoria FEMA Download Report

ADDITIONAL RESOURCES

Six Flags Over Texas, Arlington

Lidar point cloud colorized by elevation and intensity image LiDAR: Six Flags Over Texas, Arlington

The Ballpark in Arlington

Lidar point cloud colorized by NAIP 2010 Orthoimagery LiDAR: The Ballpark in Arlington

Dallas, adjacent to Trinity River

Lidar point cloud colorized by elevation and intensity image LiDAR: Dallas, adjacent to Trinity River

Cotton Bowl, Dallas

Lidar point cloud colorized by elevation and intensity image LiDAR: Cotton Bowl, Dallas

Gibbons Creek Reservoir Dam, Grimes County

LiDAR point cloud colorized by elevation and intensity image LiDAR: Gibbons Creek Reservoir Dam, Grimes County

Gibbons Creek Reservoir, Grimes County

Lidar point cloud classified by vegetation, ground and water LiDAR: Gibbons Creek Reservoir, Grimes County

WHAT IS NHD?

The National Hydrography Dataset (NHD) is a comprehensive set of digital spatial data that encodes information about naturally occurring and constructed bodies of water, paths through which water flows, and related entities. The information encoded about these features includes classification and other characteristics, delineation, geographic name, position and related measures, a "reach code" through which other information can be related to the NHD, and the direction of water flow. In addition to this geographic information, the dataset contains metadata and information that supports the exchange of future updates and improvements to the data. The NHD is based upon the content of USGS Digital Line Graph (DLG) hydrography data integrated with reach-related information from the EPA Reach File Version 3 (RF3) and serves as the surface water representation in The National Map. Documentation on the history of the original collection as well as the technical specifications for the NHD are provided here:

ADDITIONAL USES FOR NHD

The NHD data support many applications, such as:
  • Map Making. Positional and descriptive data embedded in the NHD provides the ability to selectively identify and display features used in the map making process.
  • Geocoding Observations. Much like street addresses provide a way to link data to a road network, the NHD's "reach code" provides the means to link data to water features.
  • Flow Modeling. Information about the direction of flow, when combined with other data, can help users model basin characteristics used in application such as flood prediction and control.

AVAILABLE FOR DOWNLOAD

The NHD data are downloadable for use and maintenance. An introduction to the functionality and access to the data can be found at http://nhd.usgs.gov/data.html.

Red River, NHD stream feature before edit process

NHD Red River

NHD streams & lakes, WBD watersheds and NAIP 2010 Orthoimagery

NHD WBD

WHAT IS TRANSPORTATION?

The statewide transportation dataset is a publicly available digital data layer which serves as a cartographic product for seamless base map production. The layer is fully attributed to provide the ability to selectively identify and display specific road classes used in the map making process.

AVAILABLE FORMAT

The transportation database is a vector base file and is available for download.

ADDITIONAL RESOURCES

With the Transportation dataset, many new features have been added or restructured. TNRIS has developed a short tutorial on how to best utilize the revised dataset symbology.

Transportation

Transportation Transportation

WHAT ARE THE BOUNDARIES DATA?

The StratMap boundaries delineate county, city, parks, and landmarks such as airports, universities, wildlife refuges, and military bases. They are derived from various sources such as Texas Department of Transportation, Texas Parks and Wildlife, and local jurisdictions. StratMap boundaries are primarily used for cartographic display but are also useful in preliminary right-of-way determination, highway planning and maintenance, real estate, public services, jurisdiction maintenance, and other administrative assessments.

AVAILABLE FORMAT

The transportation layers are available for download in shapefile format.

Big Bend National Park and Black Gap WMA, Brewster County

Big Bend National Park and Black Gap WMA, Brewster County

Lyndon B. Johnson National Grasslands, Wise County

Lyndon B. Johnson National Grasslands, Wise County

Wise and Denton County

Wise and Denton County

Central Texas

Central Texas

Austin Metro Area, Travis County

Austin Metro Area, Travis County

WHAT IS THE SOIL SURVEY GEOGRAPHIC DATASET (SSURGO)?

The SSURGO dataset is an updated digital version of the county soil surveys. SSURGO uses recent digital orthophotos and field work to update the original printed surveys.

StratMap and the Natural Resources Conservation Service (NRCS) joined forces to create the soil survey geographic database for Texas. This data set is a digital soil survey and is the most detailed level of soil geographic data developed by the National Cooperative Soil Survey.

AVAILABLE FORMAT

1:24,000 scale digital soil survey files are available by county via CD or through the NRCS Web Soil Survey site

ADDITIONAL RESOURCES

NRCS: http://www.soils.usda.gov/survey/

City of Austin with Soil Names

City of Austin with Soil Names

City of Austin

City of Austin

Jeff Davis County with Soil Symbols

Jeff Davis County with Soil Symbols

Jeff Davis County

Jeff Davis County
Map Service Center

TNRIS archives, maintains, and distributes the largest collection of current and historical spatial geographic data sets for the State of Texas. The collection of maps, photos, documents and other spatial datasets have been contributed from multiple sources.
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