Crow Pass Crossing is one of the toughest backcountry races in the state of Alaska. Which is to say, one of the toughest anywhere: 24 miles from the Crow Pass trail head in Girdwood to the Eagle River Nature Center! (Up and over rocky Crow Pass, past Raven Glacier, a 1/4-mile ford of Eagle River and potential encounters with large fuzzy animals.) Limited to 150 runners; for experienced runners who have completed the entire Crow Pass Trail previously. 6 hour time limit. Come cheer on the finishers at the Eagle River Nature Center finish line! HealthyFuturesAK.org.