Seattle-based photographer Wolfgang Kaehler recently returned from a six-day photo shoot in Yellowstone National Park, where he documented the use of snowmobiles in the park, including a new, environmentally friendly four-cynlinder model. Kaehler also has an upcoming trip through Asia planned and will be visiting Esfahan, Shiraz, and Persepolis, Iran; Rangoon and Pagan, Burma; Borobudur, Indonesia; Angkor, Cambodia; Ulaanbaatar, Mongolia; the Silk Road of Turfan, China; Jerash, Jordan; and Damascus and Palmyra, Syria.