Here in the Rockies near Carbondale, Colorado, June is often a transitional month. Low elevation trails are dry and surrounded by lush vegetation and spring blooms, while jagged peaks and ridges remain encrusted with receding snowfields. Roaring creeks and flooded riverbanks hint the speed with which these sun-cupped features melt away. As someone whose preferred form of movement in the summer is running in the high country, it is the season of preparing my legs...