New Mexico: Albuquerque and Santa Fe

We fly from St. Louis to Albuquerque the morning of Monday, March 23rd .
Two nights in a downtown hotel.
A day pass on Tuesday to ride four or more trains in all directions.
Time in Belen and historic Santa Fe to shop, sightsee and dine.
Free time Wednesday in "Old Town Albuquerque" and 400 years of history.
Afternoon flight home.