How Amtrak makes the longest route in America work - San Antonio Amtrak

Via catching a ride with the 21 Texas Eagle and the 1 Sunset Limited, the 421 Texas Eagle is the longest route on Amtrak's network. Here's how it transfers between one train and the other in San Antonio. This is part of a larger trip to Texas, which you can find here:    • Trains, plains, and Solar Eclipse | Trip'n...