An annual event that happens every 4th of July in Seward, Alaska. It is known for quite a strenuous and challenging course leading to the top of Mount Marathon, which is 2,974 feet (906 m) high. The start line is located in downtown, at 4th and Adams. The race finishes almost at the same spot, just a block south. The total distance of the race is only about 3.1 mi (5 km), but it is not going to be easy as the trail is muddy and rocky. Runners have suffered numerous injuries here before.

All participants are required to be in good shape and have a mountain running experience. Helmets, gloves, and other protective gear are recommended. Leading racers usually get to Mount Marathon top in about 40 minutes, and reach the finish from there in 15 minutes. The race course includes steep inclines, slippery loose rock, and shale. Racers must be ready to get themselves down the mountain even if injured since assistance is not guaranteed. The total elevation gain of the course is 3,022 feet (921 m).

Registration for the July 4th, 2020 opens March 1, 2020