Southeast of Dillon and northeast of Montezuma townsite, the Lenawee Trail is a 3.2 mile route climbing from Peru Creek up to the A-Basin ski area summit. The lower half of the trail is through aspen and pine forest, while the upper half enter above treeline tundra.
While some riders choose to do this as an out-and-back, another option is to do a car drop at the main A-Basin ski area parking lot and climb A-Basin access roads to the summit. Then, you can drop down the Lenawee Trail to Peru Creek just east of the Montezuma townsite.
To reach the Lenawee Trail mountain biking trailhead from US70, use Exit #205. Head east on US6 towards Keystone Resort. Just past Keystone, turn right on Montezuma Road for 4.5 miles. Turn left on FS260 (Peru Creek Road) for 1.7 miles. The Lenawee Trail parking is on the left.
Overall, Lenawee Trail is the 148th most popular mountain bike trail of all 176 mountain biking rides in Colorado.