The USDA Forest Service distributes GIS data as Esri Geodatabase extensible markup language (XML) files. I downloaded one in the hopes that I would be able to convert it to something less esoteric using OGR. However:
$ ogrinfo ~/Downloads/S_USA.National_Trails.xml FAILURE: Unable to open datasource `/Users/martijnv/Downloads/S_USA.National_Trails.xml' with the following drivers.
Any way to read / convert this with FOSS4G tools?