I believe you are right on the road that is part of the Alpine Loop when heading west is part of the Cinnamon Pass section.  Head west, on that road you'll find many historic sites such as Animas Forks and many large old mines in that area around California Gulch.  This area provides some of Colorado's best scenery.

Check out:
http://www.alpineloop.com

There is a large network of trails connected to the Alpine Loop.  You will need a Colorado OHV sticker and possibly valid drivers license and liability insurance for this area for ATVs.