A gravel texture. This is meant to resemble the ballast on the '1 track wood' built-in track. It was made by mixing up selections of ballast texture from it. Great when painted around it (and it's 2 track cousin). It also works with Prowler901's Narrow Gauge Track as it's the same except for gauge.
You may use this texture in any of your own creations, as long as you follow the terms of my license. Just copy the gravel-ballast.bmp file, and modify it to suit your needs.