Tribal communities in Northern California’s mountainous interior are celebrating the recent designation of Sáttítla Highlands National Monument after decades of advocacy work to increase land protections in the area.

U.S. President Joe Biden on Tuesday will create two new national monuments in California, solidifying his legacy as the U.S. leader who has conserved more lands and waters than any of his predecessors.

The proclamation will create the Chuckwalla National Monument in Southern California near Joshua Tree National Park and the Sáttítla National Monument in Northern California.