Not much remains of the largest Union fort in the west. But there’s plenty of history here. This was a critical supply base to keep the Confederacy from expanding into the southwest. Some of the Navajo who were driven from their homes during the Long Walk were imprisoned here. Here was the largest and most advanced hospital in the west. Soldiers and cavalry guarded both branches of the Santa Fe trail from here, once trading and migration routes for Natives, then for settlers whose wagon ruts can still be seen in the earth, then for the mail, and finally for the railroad, which still bears the name in the logo BNSF.

On the drive out to the site, a pronghorn stood in the road and stared at me, perhaps not frightened by my relatively quiet and zero emission electric car. Although I didn’t get a photo, I got a careful look at it and confirmed its identity with the park volunteer. Turns out they’re not antelope but related to giraffe. Again, everything I learned about the west, where “the antelope play” was wrong. There aren’t any antelope in North America. The pronghorn are the last survivors of human hunting among similar species in North America, due to their speed. Humans are increasingly lethal to all other species, and by changing our climate so quickly, we will make most species on earth extinct within a few decades. I wonder what our ancestors who traveled this trail would say if they could see how quickly we are devastating the planet.