Boulder police say the homeowner came back to the house late Thursday night and found the mountain lion inside. It appeared that it had pushed through a screen and couldn't get back out.
The big cat roamed throughout two levels of the home for more than an hour before officers used non-lethal rounds to scare it out the front door and away from the neighborhood, which is just southwest of downtown Boulder.
Police, who photographed the mountain lion lying down between a coffee table and a couch, called the break-in worrisome and asked residents to keep ground-level doors and windows locked at night.
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