The Cub Creek Trail starts at the Cub Creek Trailhead, where a looping gravel street turns into a parking lot, with plenty of parking and an information kiosk. The trail travels through the Evans Mountain Wilderness, which requires pups to be on a handheld leash throughout the entire trip. Once on the trail, the airy and openness of the path will leave you and Fido feeling refreshed as you pass through the area. Some of the first evidence of damage to the path you'll pass through is a dead timber section of the trail, caused by a wildfire that stripped the trees away from their green ferns.
At about 3 and a half miles in and past this section, you'll cross Cub Creek and continue to do this a few times along the route. The rolling hills open up and show off views of the valley and mountain peaks of the area, along with forests and grasslands that share the space of this wilderness. This hike is a rigorous one, as it gains large amounts of elevation. The path then ends at the near ridgeline of Mount Evans. The last major feature you'll notice is an open field of dead trees on the ground, which was caused by a major wind event that blew down a portion of the wilderness and was eventually cleared out in 2015. The trail ends at the connection to another trail called Mount Evans Road, which leads along switchbacks to the top of the peak.
This backpack trip of Cub Creek Trail is a hard and long one, and even if you don't finish it, it will make a great day hike for you and Fido to explore the area.