The Animas River is 400' down from the tracks at this point. STRAIGHT down. Not for the faint of heart!
One does get a little edgy when everyone in the car rushes to the same side to look down at the river. If it were a boat, it would capsize.
The conductor told me they call this the "stress test". Amazingly, the car barely notices. It leans a little, creaks, but little else. Spooky!