The Cumbres Toltec Scenic R.R. runs between Chama, New Mexico and Antonito, Colorado. The train criss crosses back and forth, in and out of the two states 10 times. During the trip, the engineer blows out the water from the bottom of the tank to clean out the sand and dirt particles that accumulate. It's quite a blast of water.
"Blowing out the Tank" © Kathy Dunham 2010