There are roughly 200 miles of marked trails and even more if you consider side trails and unmarked trails. The Silverton trail alone is 78 miles and would take more than a day to complete. During my visit it was my goal to travel as my trails as possible exploring as much of the landscape as we could. However, my big-ticket items are as follows. Imogen Pass, Black Bear Pass, Engineer Pass, Ophir pass and finally Cinnamon pass, taking every opportunity to stop for pictures along each. With a goal of hitting at least one trail per day, (optimistic, I know!) The map above is the best illustration I could find of the area.