Rio Grande and Pecos Railway. Map of the Rio Grande and Pecos Railway showing its connections with the Texas Mexican, Texas Mexican Short Line, Mexican National, Texas & St. Louis, and Denver & Rio Grande Narrow Gauge systems and also the International & Great Northern, Mexican Oriental Interoceanic & International, New York, Texas & Mexican and International & Mex. Standard Gauge roads. Outline map of the U.S. Southwest showing major drainage, cities and towns. Railroad lines are named and narrow gauge lines are in red. The "Cannel Coal Field" is indicated. Rio Grande and Pecos Railway Co.