Yellowstone National Park was inscribed in UNESCO World Heritage site list in 1978. Glacier National Park combined with Canada's Waterton Lakes National Park is a UNESCO World Heritage site (inscribed in the list in 1995).
Yellowstone National Park - Eagle Peak (11,372 ft/3,466 m) Glacier National Park - Mount Cleveland (10,479 ft/3,194 meters)
Largest lake inside Yellowstone National Park - Yellowstone Lake (132 square miles) Largest lake inside Glacier National Park - Lake McDonald (10.7 square miles)