西奧朵‧羅斯福與約翰‧慕爾於1908年在優勝美地河谷欣賞冰河點風光

出處: Underwood & Underwood. "Theodore Roosevelt and John Muir, Glacier Point, Yosemite Valley, California." 1906. By Popular Demand: Portraits of the Presidents and First Ladies, 1789-Present, Library of Congress.