If you're a 4-wheeler rider looking for a trail with varying levels of difficulty then maybe you want to give the 4-wheeler trail at Schofield Pass a shot.
This 4-wheeler trail starts out deceptively easy, but quickly turns into one of the most difficult and dangerous 4-wheeler trails in all of Colorado. The pass is considered a shortcut between the towns of Marble and Crested Butte, and you will generally be following the Crystal River on this ride.
There is no upkeep of this 4-wheeler trail as the county considers it a closed road. Be sure to check out road conditions ahead of time. The weather can be treacherous, and there are often winter avalanches that don't fully melt until the middle of summer. 4-wheeler riders may also encounter rockslides that have yet to be cleared away.
On one especially treacherous portion of this 4-wheeler trail, the road is carved out of a sheer granite face, barely wide enough for one vehicle to pass. There is nothing but a sheer cliff dropping off beneath you into the Crystal River. You can look down from your 4-wheeler into an area known as The Devil's Punchbowl. Tread carefully in this area, as it is very dangerous.
The 4-wheeler trail delivers you to the old mining town site of Schofield, which lies in a flat mountain park in between Crystal, and the Devil's Punchbowl. Once you've reached Schofield, the 4-wheeler trail is fairly smooth driving the rest of the way to the old mining town of Gothic, a few miles from Crested Butte.