Texas Natural Resources Information System

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Around the State

A head shot of Rob Aanstoos

Rob Aanstoos – Thank you for an amazing 35 years!

TNRIS had the chance to talk to Rob Aanstoos, a key figure in Texas GIS, on the eve of his retirement from 35 years of service to the state.

Read More about Rob Aanstoos's retirement

GIS Training & Education

Spring has Arrived! Register for GIS Classes to Sharpen your Skills!

New Class Offered!

Books and Screenshots from training

Back by popular demand

Full Course List

Providing the Highest Level of Geographic Data Services to the People of Texas

Research & Distribution

Data support staff working with a customer

Let our hands-on team of data specialists assist you with physical map products and other datasets, many unavailable online.

Learn More about Research & Distribution

Geographic Information Office

Texas flag superimposed with spatial data

TNRIS hosts the State of Texas’s Geographic Information Office (GIO), an inter-agency initiative to collaborate and facilitate the effective use of G.I.S. in state and local government.

Learn More about the Geographic Information Office

Texas GIS Forum

Audience and speaker at the Texas GIS Forum

Our annual gathering of the Texas GIS community, showcasing the latest innovations and talent in the field.

Learn More about the Texas GIS Forum