Nature For The Blind has a directory of Braille trails for almost every state in the US and for many other countries.
Category: Texas misc
Rails-to-Trails – Texas
The Rails-to-Trails Conservancy lists wheelchair accessible trails in Texas.
-Wheelchair Accessible Wildlife Viewing Sites in Texas
Wheelchair Accessible Wildlife Viewing Sites in Texas – This includes state as well as federal areas.
Houston Audubon Society
The Houston Audubon Society is a great resource for information on accessible places in that area. Thank you, Betty H.