Iowa · 50K · 25K · 5.2 Miler

Swiss Valley Trail Races

Swiss Valley Trail Races is a 50K, 25K and 5.2 Miler event held in Peosta, Iowa. Its next confirmed date is Saturday, October 2, 2027.

Race day
October 2, 2027
Location
Peosta, IA

Race details

Date
Saturday, October 2, 2027
Location
Peosta, Iowa
Distances
50K, 25K, 5.2 Miler
Course
Each 5.2-mile loop climbs ~875 ft; 25K (3 loops) ~2,625 ft gain, 50K (6 loops) ~5,250 ft gain (organizer estimate; no official profile published).
Registration
ultrasignup.com

Registration, course & weather

Start time
7:00 AM CDT
Course profile — 5.2 Miler
Loop course; Trail surface; 875 ft gain, 875 ft loss (official course data); Not USATF certified
Course profile — 50K
Loop course; Trail surface; Not USATF certified
Course profile — 25K
Loop course; Trail surface; Not USATF certified
Typical race-day weather
about 65°F at the start, 86% humidity, 9 mph wind (based on the 2025 race day, measured near the city center rather than the exact start line; Open-Meteo, checked September 26, 2026)

About the Swiss Valley Trail Races

Swiss Valley Trail Races is a looped trail run through Swiss Valley Nature Preserve near Dubuque, Iowa, held each October with 5.2-mile, 25K, and 50K options over rugged, hilly terrain with creek crossings. Proceeds benefit Friends of Dubuque County Conservation.

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Swiss Valley Trail Races: common questions

When is the Swiss Valley Trail Races?
The next confirmed date is Saturday, October 2, 2027.
Where is the Swiss Valley Trail Races held?
In Peosta, Iowa.
What distances does the Swiss Valley Trail Races offer?
50K, 25K and 5.2 Miler.
How do I register for the Swiss Valley Trail Races?
Registration is handled by the organiser at ultrasignup.com. Entry fees, caps and deadlines are set there.
What time does the Swiss Valley Trail Races start?
7:00 AM CDT.
What is race-day weather usually like at the Swiss Valley Trail Races?
about 65°F at the start, 86% humidity, 9 mph wind (based on the 2025 race day, measured near the city center rather than the exact start line; Open-Meteo, checked September 26, 2026).