This was the old stage road between Georgetown and Empire.Now it's a nice piece of single track about a mile in length that connects the two towns. On your bike ride back under the overpass follow the frontage road up a steep hill to the right. The singletrack starts at the end of the frontage road and climbs for about a mile to the top of Empire Pass. From here there are several options left goes up Bard Creek to Domocrat and Republican mtns. It's a steep climb to the top. Or if you go right the road leads to Empire.
Take I-70 west of Denver to the Georgetown exit #228 deive under the overpass and park at the visitors center on the right
http://www.singletracks.com/item.php?c=1&i=1675