If you have any interests in maps, or the history of Texas and property ownership, we have a large collection of maps on the Portal, including historic cadastral and topographic maps. In our USGS Topographic Map Collection, we have two sets of digital quadrangle maps. There is a set of regular topographic maps covering the entire state, as well as a second set of the same maps captured with satellite photos. We also have more than 900 historic Texas county maps from the General Land Office and many other historic and modern maps covering the state.
--submitted by Hannah Tarver, Head, Digital Projects Unit