Photos: (Top) You can lead horses to rock, but you can’t make them climb. Tara Offenbacher, Todd Offenbacher, Olive Offenbacher, Leila Rich, Tommy Caldwell and Fitz Caldwell gain elevation during a 4-day, 3-family horsepacking trip in the Sierra Nevada. California. COREY RICH (Bottom) Zoe Hart gives Mika a boost while climbing Le Brévent, high above their home in Chamonix, France. PIERRE CADOT | 
