Berkeley Pit Overlook
Never underestimate the drawing power of a big hole in the ground, especially one filled with a deadly soup of arsenic, cobalt, and cadmium.
The Berkeley Pit at one time was America's Largest Truck-Operated Open Pit Copper Mine. Now it's a 500-acre lake of deadly drainage, 1,800 feet deep and a mile across. The pit holds over 40 billion gallons of waste so deadly that in 1995 it killed over 300 snow geese that mistakenly landed on it. The snow geese slaughter happened again in late November 2016, when 10,000 of them landed on the liquid and thousands succumbed.
The mine pit is an official attraction! Pay two dollars, walk through a tunnel cut through the pit's side, and emerge at the Overlook and Interpretive Pavilion, with picnic tables, restrooms, and a snack bar. You're kept safely out of the Death Zone, and the lake can display a dazzling palette of colors -- red, yellow, neon green -- in the sunlight.