Hanne & Jens Eriksen / Boat at San Rafael glacier, Chile

Pete Oxford / San Rafael or Coca Falls on the Quijos River, Amazon, Ecuador

Pete Oxford / San Rafael or Coca Falls on the Quijos River, Amazon, Ecuador

Tui De Roy / San Rafael Falls on the Coca River squeezes through a lava canyon in wet temperate rainforest, Ecuador

Hanne & Jens Eriksen / Iceberg of blue ice near the San Rafael Glacier, Chile, November

Hanne & Jens Eriksen / Iceberg of blue ice near the San Rafael Glacier, Chile, November

Michael & Patricia Fogden / San Rafael Falls, Cayambe Coca Ecological Reserve, Ecuador

David Welling / San Rafael Swell, near Goblin Valley, Utah, USA, August.

Murray Cooper / San Rafael or Coca Falls on the Quijos River, Cayambe Coca Ecological Reserve, Ecuador

MORLEY READ / San Rafael falls, Rio Quijos, Ecuador

MORLEY READ / Aerial view of San Rafael falls, Rio Quijos, Ecuador

Jack Dykinga / Sawtooth evening primrose {Oenothera pallida} flowering in San Rafael desert, Utah, USA with sandstone hoodoo formations in background