[mb18-podcast_player podcast_mp3_url="https://traffic.megaphone.fm/DTT9364810382.mp3"] Leadville, Colorado is a mecca for endurance racing in the United States and home to some of the country's hardest trails and toughest athletes. In the summer of 2019, ultra runners Marvin Sandoval and Buttercup became unlikely partners and show us what happens when you combine a love of sport, hard work, a [...]
