Alaska 's 4 million acres are home to more than 2,100 brown bears . Always maintain a 50-yard distance from bears and never separate a mother from her cub . The 1918 Novarupta volcanic eruption was the largest of the 20th century . There are daily commercial flights from Anchorage to King Salmon , about a 290-mile trip . The eruption created the Valley of Ten Thousand Lakes , 100 square miles of volcanic ash .
Alaska 's 4 million acres are home to more than 2,100 brown bears . Always maintain a 50-yard distance from bears and never separate a mother from her cub . The 1918 Novarupta volcanic eruption was the largest of the 20th century . The eruption created the Valley of Ten Thousand Lakes , 100 square miles of volcanic ash .