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.

President Joe Biden on Tuesday established two new national monuments in California, the latest in a flurry of major environmental initiatives affecting the Golden State as his presidency comes to a close.

Biden has federally protected 1,053,125 square miles of land and ocean in his term — an area nearly four times the size of Texas.