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Mines of Spain 100 100K — 2026Iowa, United States60.9mi7,036ftOct 16

Mines of Spain 100 100K — 2026

Iowa, United States · Race day · Oct 16, 2026 · by Sun Trail Running

Race almanac: 1 year of race-day weather
Plan this race
Course map, elevation profile & surface
Distance
60.9mi
Elev gain
7,036ft
Elev loss
7,028ft
High point
847ft
Low point
606ft
Surface
85% trail
Drawing the course…

Race-day light

In the dark
8%
Sunrise
7:17am
Sunset
6:20pm
Headlamp from
56mi

For a 12:50 finish (an estimate) · starting 7:00 AM Oct 16 · headlamp mi 56–the finish. Dark means the sun below civil twilight.

Climbs

15 climbs · 3,199 ft totalbiggest first
Pick a climb to find it on the profile and the map.
Aid stations as published on the course file
Aid stationMilekm
A Sauk Fox (lap 1)4.26.8
A Cattesse (lap 1)10.516.9
A EB Lyons (lap 1)15.324.6
A Sauk Fox (lap 2)24.539.5
A Cattesse (lap 2)30.849.6
A EB Lyons (lap 2)35.657.2
A Sauk Fox (lap 3)44.872.1
A Cattesse (lap 3)51.182.2
A EB Lyons (lap 3)55.989.9

Badge colours match the markers on the map above — always confirm locations and cutoffs with the race organizer.

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Nobody from Mines of Spain 100 100K — 2026 has checked this course yet — it’s built from what the race published. Ask them to:Email your race director

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Conditions typical race-day weather for Oct 16 at the start
Typical high
60°F
Typical low
44°F
Chance of rain
30%
2025 high
70°F

Typical = the median of 2016–2025 for Oct 16 ±3 days at the start line; a wet day has 1 mm of rain or more. Historical weather from Open-Meteo.

Race almanac 1 year of this race

Past editions

On race day it reached 54°F at the start, with a low of 44°.

YearStart °FRainWind
2026 Oct 1654°/44°0.08in19mph

Next race day Fri, Oct 15, 2027 · 7:00 AM start

First lightsunrise 7:16 am
6:47am
Last lightsunset 6:22 pm
6:51pm
Moonfull moon, up all night
100% lit

First and last light are civil twilight, the sun 6° below the horizon. The moon is lit as at midnight after the start; headlamp hours count a typical finish from the start while the sun is below civil twilight. Worked out for the start line.

race-day weather from the Open-Meteo historical archive (ERA5) at the start line.

Reviews what runners who have been there say

No reviews yet — be the first to run it and tell other runners what to expect.

About this course

Mines of Spain 100 100K — 2026 covers 60.9 mi (98.0 km) with 7,036 ft of elevation gain through Iowa, United States. That is about 116 ft per mile of climbing, and 7,028 ft of descent. The course tops out at 847 ft and bottoms out at 606 ft. The surface is 85% trail and 15% paved. There are 9 aid stations on course; the longest stretch between aid is 9.3 mi. The profile has 15 sustained climbs; the biggest is the climb from mi 3.7, +236 ft over 1.3 mi at 3.5% on average (steepest stretch 14%). Race day is October 16, 2026, starting at 7:00 AM; the sun rises at 7:17 AM and sets at 6:20 PM. Typical race-day weather at the start: a high of 60°F and a low of 44°F, with a 30% chance of a wet day. The interactive map above shows the full route with its elevation profile and aid stations, built from the course's GPS file.

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Course history

  1. Sep 3, 2026Added to the catalog
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