Colorado Parks and Wildlife (CPW) is offering free entry to all Colorado state parks on Monday, August 7.
source https://www.koaa.com/news/covering-colorado/dont-miss-out-colorado-state-park-free-admission-day-is-on-the-way
source https://www.koaa.com/news/covering-colorado/dont-miss-out-colorado-state-park-free-admission-day-is-on-the-way