The Colorado Parks and Wildlife released the video above of a mountain lion roaming around Aurora, CO neighborhood. They say the big cats like deer, they’ll also look for raccoons, skunks, livestock and pets.
Below is also a link from Colorado Parks and Wildlife with advice on what to do when you come across a mountain lion.
https://cpw.state.co.us/learn/Pages/LivingwithWildlifeLion1.aspx