Cartoonist John Potter creates this handy pamphlet for the ecologically illiterate headed to Yellowstone and Grand Teton

Former second in command of US Forest Service questions agency's accelerated push to thin forests and log big trees in response to fire, insects and climate change. Felling forests, Jim Furnish says, is not a strategy to save them

For Susan Marsh, it goes far beyond the sensuousness of color. The fall reminds that there is humbling glory beyond our own impermanence