Iowa Trail Run Series: Yellow River State Forest
Iowa Trail Run Series: Yellow River State Forest logo

Iowa Trail Run Series: Yellow River State Forest

Harpers Ferry, Iowa, United States View on map
Sep 20, 2026 (America/Chicago local time)
Running

About this race

The driftless region of Iowa is like no other place in the state. Run with us at Yellow River State Forest to experience a variety of terrain and beautiful views of the surrounding valleys. We'll have a half marathon, 10K, and 5K to challenge all abilities of trail runner! 

The Iowa Trail Run Series is not about spending a bunch of cash for no reason. You'll get a great race with clear marking and course support, with basic timing, a cool custom bib, and a rotating race item such as a BUFF, socks, a stocking cap, coffee mug, and aluminum water bottle. Signing up for the entire series includes an exclusive series gift! Do you want a really soft and comfy tri-blend shirt with one of our Animal Icons? Great! Add one during your registration. We know some people have enough stuff in their closet and others may want to commemorate the day! Plenty of post-race food to refuel! Games! Giveaways from sponsors!

Pick your distance

Running

5K

Sep 20, 2026 5K 8:00 AM
$45.00
Closed

10K

Sep 20, 2026 10K 8:00 AM
$45.00
Closed

Half Marathon

Sep 20, 2026 Half-Marathon 8:00 AM
$60.00
Closed

Typical race-day weather

Based on 7 years of Open-Meteo archive data for this event's race dates in Harpers Ferry, plus the 3 days either side.

Temp (°C)
Minimum temperature (race-week average) 14.9° / Maximum temperature (race-week average) 23.9°
Feels Like (°C)
Minimum feels like — heat index / wind chill (race-week average) 14.7° / Maximum feels like — heat index / wind chill (race-week average) 24.8°
Peak wind (km/h)
Strongest wind of the day (race-week average)
16.9
Precip (mm)
Precipitation over the day (race-week average)
4.6mm
Humidity
Mean relative humidity (race-week average)
73.1%
Sunrise
Sunrise at the start line on September 20, 2026 (CDT)
Sunset
Sunset at the start line on September 20, 2026 (CDT)
Daylight
Hours between sunrise and sunset on race day
12h 15m

The sun rises at 6:49 AM and sets at 7:05 PM local time (CDT) in Harpers Ferry on September 20, 2026 — 12h 15m of daylight.

Course

No course map published yet.

The organizer hasn't released a route for this event, and we don't publish guesses. If you're the organizer, send us a GPX file and we'll draw the profile.

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Other races near Harpers Ferry

Different organizers, within 40 miles, in the next three months

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Where this page comes from. Race details were last updated on . We re-check listings regularly and again in the week before race day.

  • Entries, prices, waves and inclusions — the event's official registration page
  • Temperature and humidity — Copernicus ERA5 reanalysis via Open-Meteo (CC BY 4.0)
  • Elevation and terrain relief — Copernicus DEM GLO-90, ESA (CC BY 4.0)
  • Comparisons and counts — Race Discovery calendar, 2 Harpers Ferry events

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