California is engaged in the world’s largest dam removal project in hopes of letting nature rebound

This time next year, a series of massive dams that block off the Klamath River will no longer exist. The soil and rocks originally dug and transported from a nearby mountain in the 1950s will be returned to their home and the river will run freely again. 

The Iron Gate Dam, which opened in 1964 as the last of four dams that, at nearly 200 feet tall each, regulated the flow of the river and time releases for the local water supply in Northern California, is now part of the world’s...