This winter event held at Colorado Mountain College -- Leadville , continues to grow .
This winter event held at Colorado Mountain College -- Leadville , saw 173 competitors in the Loppet 's 44k , 22k and 10k races .
This winter event held at Colorado Mountain College -- Leadville , continues to grow and saw 173 competitors in the Loppet 's 44k , 22k and 10k races .