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Texas Natural Resources
Information System (TNRIS)
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TNRIS, a division
of the Texas Water Development Board, is the state's clearinghouse
for natural resources data. TNRIS serves as a distribution center
for U.S. Geological Survey maps and has numerous other map collections
available for in-house use or reproduction, including an impressive
collection of historical aerial imagery. Digital data available
through TNRIS pertain to natural resources, Census, and other
spatial data.
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Texas Strategic Mapping
Program
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The Strategic Mapping
Program is a Texas-based cost-sharing program to produce, maintain,
and enhance digital geographic data layers in partnership with
other public and private sector entities. Much of the base cartographic
data used by TWDB originates from StratMap.
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Water Information
Integration and Dissemination (WIID) System
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The Water Information
Integration & Dissemination initiative is a four-year program
utilizing internet-based mapping technology to significantly
improve internal and external access to water-related data.
The first phase of the WIID focuses on internal data integration
and development of web-based access to critical information.
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Texas Water Information
Network (TxWIN)
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The Mission of the
Texas Water Information Network is to facilitate access to basic
and value-added water resource and related data for Texas.
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Other Texas State Agency Links
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Texas Commission on
Environmental Quality (TCEQ) -- Formerly TNRCC
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GIS data, maps,
and map services are offered by the Texas Commission on Environmental
Quality (TCEQ).
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Texas Parks and Wildlife
Department (TPWD)
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The Texas Parks
and Wildlife GIS Lab has a wealth of spatial information available
to the public. Their website currently offers maps and GIS data.
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Texas Department of
Transportation (TXDOT)
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The Texas Department
of Transportation (TXDOT) offers a wide variety of spatial data,
but the majority of their data is actually published through
the Texas Natural Resources Information System (TNRIS).
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Texas General Land
Office (TGLO)
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The Land Office
provides more than 100 GIS data layers to employees and the
public. The agency is also developing desktop and online applications
that will combine GIS datasets containing leasing information.
GIS data is available for downloading from their website.
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Border Colonia Geography
Online -- Office of the Attorney General (OAG)
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The Office of the
Attorney General created and maintains an extensive Colonia
Geographic Database for the border region. The database stores
accurate geographic and descriptive data on over 1,800 colonias
areas in 29 border area counties. Maps and data from this database
are now viewable on-line at the OAG site.
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Texas Legislative
Council (TLC)
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The Texas Legislative
Council provides an excellent resource for accessing current
redistricting plans. Users can also directly access REDViewer,
which allows visitors to interactively create maps.
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United States Geologic
Survey (USGS) - Mapping
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The USGS National
Mapping Information website represents a massive spatial data
resource, acting as a portal to numerous geographic data servers,
hardcopy and digital maps, GIS data, and online map services.
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GEONet Names Server
(GNS)
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The GEOnet Names
Server (GNS) provides access to the National Imagery and Mapping
Agency's (NIMA) database of foreign geographic feature names.
The database is the official repository of foreign place-name
decisions approved by the U.S. Board on Geographic Names (US
BGN). Approximately 20,000 of the database's features are updated
monthly.
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U.S. Census Bureau
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The Census Bureau
Geography site offers the commonly-used TIGER data, as well
as other mapping resources such as the Census 2000 map series,
boundary GIS data files, and online Census mapping engines.
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National Oceanic and
Atmospheric Administration (NOAA) --
NOS Mapfinder
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The NOS MapFinder
service provides access to images and data from a number of
National Ocean Service (NOS) offices. Available data includes
coastal aerial photography, low resolution nautical charts,
coastal survey maps, environmental sensitivity index atlases,
hydrographic survey outlines, historical maps, and water level
station data.
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GIS Data Depot
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One of the largest
free geo-spatial data repositories on the web. Download geospatial
data products, or order data bundles and custom data products,
delivered to you and custom written on CD-ROM.
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Geography Network
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The Geography Network
is a global network of geographic information users and providers.
Through the Geography Network, you can access many types of
geographic content including live maps, downloadable data, and
more advanced services.
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