I am reading Colorado: The Highest State by Noel & Smith (2011). It's a history of Colorado. I didn't know the book was for 8-12 year olds until I started reading it. Oh well, that makes it easier for me to read. I learned about Bent's Fort near La Junta, while reading about trappers and fur traders. Bent's Fort, on the Santa Fe Trail, was the largest trading post in Colorado from 1833 until 1849, when it was burned after a cholera epidemic.
A visit to Bent's Fort will make a nice day trip on the motorcycle. A stop at the Koshare Indian Museum in La Junta will make a full day.
Did you know San Luis, in the San Luis Valley, is the oldest town in Colorado? It was founded in 1851.