Its probably too early to do this, but if it stays as dry as its been all winter, you might be able to.
I would vote for renting a jeep and heading up to the mountaints for a day or two. There are trails everywhere, many that run up along the continetal divide, that are left from old mines that the forest service now maintains. Definitely alot of fun to be up drving around at 13,000+ feet.
If you want to ski for a day or two, A-basin is usually open until June.
Red Rocks and Coors Field are for sure pretty sweet too, I would try to look into them.