Early spring in the Rocky Mountains is a roller coaster ride–nights below freezing then days in the 70’s followed by days in the 40’s. We start with a beautiful sunrise followed by rain, sleet, hail, then snow before we again watch the sun as it sets. A time when winter will not give up its grip but summer will not be denied. Snow is receding and green is winning the day, so let’s head to Trout Lake in the Northern Range of Yellowstone and search for signs that summer is on the way.