Hello Pat,

I used to live in Colorado and it depends on what kind of activities you
enjoy.  If you like hiking, you might want to look up a Sierra or
Wilderness Club list of activities for that state and see if hiking trips
in the Rockies are planned.  Or you might like to visit some of the
ancient Native American sites scattered throughout the state- you can try
to get in touch with the Board of Tourism for more particular details -
perhaps through internet.

Have a great trip!
Kathy