In the offseason before the 2011–12 season, Cumiskey signed a one-year two-way deal with Colorado days before training camp. During the preseason Cumiskey suffered a concussion and was placed on injured reserve by Colorado.
Cumiskey's signing with Colorado occurred just before the start of the 2011-2012 season, but his stint with the team was brief due to an injury. He suffered a concussion during preseason training and was subsequently placed on injured reserve by Colorado.