The South Yuba Trail spans 15 miles and offers some of the best views of the South Yuba River Canyon. The portion of the trail between Round Mountain Trail and the Purdon Bridge is suitable for running as the path is smooth and narrow with some challenging climbs, but it's not right on the canyon's edge. However, the portion between Round Mountain Trail and Edwards Crossing Bridge is very narrow and runs right on the canyon's edge, with no room for mistakes. It's not recommended for running, but it offers fantastic canyon views if you want to slow it down and walk the trail.