Erin Ralph went hiking December 18, 2011 2 miles 250 feet gained Cooper Mountain 1 Just a quickie at our local short hike. We do this 1-4 times per week, so I probably wont write up a report every time. 2.14 miles, elevation gain ~300ft. Trail Talk 1 person has hearted this trip. Kyle Meyer · December 22, 2011 Gorgeous photos.