Trail, Tram, Trolley and Train: Portland's 4T loop
Outdoors Portland 4T Trail
Anna, Lisa and Nancy Anderson start up the Marquam Trail in the west hills near the Oregon Zoo in Portland, Ore., Oct. 6, 2012. A multimodal loop excursion around downtown and southwest Portland, designated 4T for Trail, Tram, Trolley and Train, showcases some of the characteristics that have given the city its reputation as one of the nation's most livable cities: urban forests just minutes from downtown, its light-rail and trolley system, and a tram that provides spectacular views as it transports riders up and down a hill overlooking the city. (AP Photo/The Democrat Herald, Graham Kislingbury)