Tunnel Hill 100 mile run has been granted the IAU (International Association of Ultrarunners) Silver Label, AND the IAU Trail Label for 2018. This is a very unique combination, and we are proud to earn it. This international label goes perfectly with the USATF sanctioning, and certification. Your hard-earned records will count at Tunnel Hill.”
Incredibly fast course consisting of an old railroad bed covered with finely crushed limestone on the Tunnel Hill State Trail in southern Illinois. Although the course is on a gentle 2% grade the scenery is anything but flat. Gorgeous views from the dozens of old train trestles. The signature feature is the old tunnel. Over 600′ long. It’ll get your juices pumping. Many ran their first 100 or established a new pr. Custom buckles, jackets, shirts, caps. On site camping. Aid stations accessible for crew.