This is the Saint Catherine of Siena’s Chapel which is a popular tourist attraction in Allenspark, Colorado (near Rocky Mountain National Park).
Pope John Paul II visited this church during his visit to Denver in 1993 and then hiked through the surrounding woods and blessed the church as he lived. There was a big fire near here back in November 2011 that destroyed the Saint Malo Retreat Center that is located right behind it. Fortunately this church did not suffer any damage. It’s a beautiful structure.