what year was death valley established
But the truth about Death Valley is far more intriguing. 1  Itâs the largest National Park in the lower 48 states with 3.3 million acres. 2  It was established as a National Monument in 1933 and as a National Park on Oct. 31, 1994.  It has the lowest elevation in the Western Hemisphere at Badwater (282 feet below sea level)