At the site known today as the La Brea Tar Pits and Museum, natural asphalt has bubbled up from below the ground’s surface ...

The tar pits were formed thousands of years ago, from natural sticky asphalt. The asphalt trapped animals, plants, and insects during the Ice Age. Scientists and researchers have been excavating ...

Broadway in downtown Missoula. Protect the Clearwater, a group formed to oppose the proposed pit and adjoining asphalt plant, filed the lawsuit in 2023 against DEQ, the agency that granted a ...