One network, three speeds
You can be on dirt a few minutes from Main Avenue. Horse Gulch, Overend, Twin Buttes, and the paved Animas River Trail cover the after-work loop. Hermosa, Missionary Ridge, and the La Plata Canyon road are the half-day drives. Coal Bank, Molas, and the Weminuche are the high country, open roughly May through mid-October.
Most of that ground is shared. Hikers, bikes, and horses use the same systems, and the etiquette matters on the fast descents in Horse Gulch. The three pages below split the same map by how you travel it.