IRONBULL Red Granite Grinder
Length: 144 miles / 85 miles / 50 miles / 12 miles
Location: Wausau, WI
Website : https://www.ironbull.org/red-granite-grinder-details
144-mile, 85-mile, and 50-mile gravel bike races through Marathon County including rolling gravel roads, ATV trails, beautiful parks, forests, ginseng fields, and farm lands. 12-mile recreational ride free for kids
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