Teton Gravity Research released a teaser this week: Mountain in the Hallway. Throughout the years, Tate MacDowell and Brian Mcdonell have been big contributors to the Jackson community. In 2016, they were both diagnosed with colorectal cancer. When you’re fighting a battle that can become overbearing and diminishing, you always have to maintain your goals. These guys set their sights on a pretty big goal, summiting the Grand Teton…










