A summertime visit to a National Park is a tradition moving into its second century. But America's parks may have become too successful in attracting visitors from around the world. Conor Knighton takes the measure of park tourism then and now.
Watch video On The Trail: Utah's too-popular National Parks online, duration hours minute second in high quality that is uploaded to the channel CBS Sunday Morning 29 May 2016. Share the link to the video on social media so that your subscribers and friends will also watch this video. This video clip has been viewed 134,724 times and liked it 718 visitors.