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The Three Rivers Trail

Humboldt County, Iowa

  • Map
  • Hardpack Bike Ride
    • Hardpack 2025
    • Humboldt Hardpack Riders 2025
    • Hardpack 2024
    • Humboldt Hardpack Riders 2024
    • Hardpack 30 2023
    • Hardpack 30 Riders 2023
  • Hospice Trees
  • History
    • Glacial Geology and Des Moines Lobe
    • Des Moines River
    • Third Largest Cottonwood in Iowa
    • Oak Remnants
    • Gotch Park: Native American Site
    • Last Battle
    • Minneapolis & St. Louis Railroad
    • Train Wrecks
    • Lost Town of Rogerton

Main Content

Humboldt County, Iowa

Three Rivers Trail

Biking and hiking in north central Iowa.

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Help promote the TRT

Hardpack Bicycle Ride

September 20, 2025

Online Registration

Download Paper Registration

More Information

Share Your Hardpack Experience

Just you, your bike (or your kicks), and the big, beautiful sky!

Tell your story. Share your pics.

Do you have a Three Rivers Trail tale to tell? Do you have a great snapshot of the river, the wildlife, a sunrise, or a stormfront moving in? Email them to info@threeriverstrail.org. We would like to share them here.

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