I absolutely love the mountains. And yet my soul sometimes yearns for the wide open expanse of the high plains, mesmerizing waves of grass in the prairie wind. I’ve found just the place to get my range fix. Pawnee National Grassland in northeastern Colorado is one of 20 national grasslands in the U.S. The Pawnee Buttes, rising 300 feet above the prairie, are the most awe-inspiring feature of the park. The Pawnee Buttes Trail hike transports you back in time a couple of hundred years to the days of the wild frontier.