Yansing Gulch, previously known as Chinaman Gulch, is a very popular, difficult rock crawling trail ideal for testing the limits of modifieds vehicles. Minimal snow to the area makes it a great location for winter wheeling. There are many obstacles and rocks to play on along this 4wd trail, many of which provide multiple lines from easy to hard. Although not very scenic, the occasional views of the Collegiate Peaks are astonishing. This trail is a great trail for groups as the main obstacles provide enough room for vehicles to pull out of the way and watch other vehicles attempt the obstacle.