Base Layers by County
Roads, water features, cities and political boundaries as shapefiles.
What this is
The base map RRC draws its own products over: roads, hydrography, municipalities and political boundaries, county by county.
How it is laid out
The Railroad Commission publishes this as ArcView shapefile. ArcView shapefile — several files that must be kept together. We mirror the Commission's file exactly as they published it, byte for byte. We have not decoded this one into a table yet, so reading it needs the right tooling.
What we add
Reproduce the Commission's own map look, or provide context for a well map without a third-party basemap.
- Mirrored so the file is here when the Commission's own link is not.
- Documented — what it is, where it came from, and when we last fetched it.
Worth knowing before you use it
Every RRC map layer is published in the Geographic coordinate system in decimal degrees on the NAD27 datum — EPSG:4267. That is not what web mapping expects. Overlaying it on anything modern without reprojecting to WGS 84 puts Texas wells roughly 100 metres from where they belong.
Files are packaged county by county under RRC's …
The full page lists every trap in this dataset.