Hidden Valley travels through open rolling fields. Heading along a bench, this section of nearly level trail is narrow. There is no shade on this dry route, but instead you get plenty of grasses, yucca and chattering prairie dogs. At the top of the hill take in the distant view of the Flatirons and foothills. This trail crosses paths with many others, presenting the opportunity to explore more trails, including the Eagle, Mesa Reservoir, Degge and Cobalt Trails.