Green

Dunes in the mountains

This breathtaking image of Colorado’s Great Sand Dunes National Park is from photographer Nate Zeman of Breckenridge, Colo. He was captivated, as am I, by the contrast between the jagged, snowy Sangre de Cristo mountains and the smooth, warm dunes in the… Read More ›

Be still and know …

Estes Park photographer Eric Stensland shot this unidentified trail in Rocky Mountain National Park last week. There’s so much more to our national parks than crowded roads and panoramic views. It’s hard to beat the sweet serenity of a quiet… Read More ›

A murmuration of sheep

Sheep herding, New Zealand style. It takes some well-trained dogs to pull this off, and you have to look closely to even see them in this video from aerial photographer Tim Whittaker. It was posted to YouTube in February 2016… Read More ›

Marmots on Niwot Ridge

I’ve spent a lot of time using the controllable TundraCam, up on Niwot Ridge near Nederland, CO (17 miles west of Boulder). It’s at 11,600 feet, in the middle of an area of research projects, with great views of surrounding… Read More ›