Iowa Hill and Shirttail from colfax
On S Auburn St, Colfax, Placer County, California
Gravel Route
60.17 mi
Length
9,564 ft
Elev gain
9,564 ft
Elev loss
4,646 ft
Max elevation
pavement 53%
gravel 42%
dirt 6%
Elevation Click the profile for Street View
Iowa Hill and Shirttail from Colfax is a 60.2-mile loop route starting in Colfax, California, United States. It has 9,564 feet of climbing and 9,564 feet of descending. The surface is mixed, with 53% pavement, 42% gravel, and 6% dirt. AI-generated description — details may not be fully accurate.
0 votes
on June 24, 2025
Did this recently -- though I think Yankee Jim's Bridge might be closed now. Excellent loop! Limited cell reception. Ran it on 47 pathfinders and was fine though would have enjoyed a bit more tire on some sections around the halfway mark.