The US federal government has evicted Yosemite Native people from the park in 1851, 1906, 1929, and 1969. Jay Johnson, an alleged Ahwahnechee leader in the Mariposa Indian Council, hopes to get federal recognition for Miwok Indians. Plant use The Ahwahneechee burned undergrowth in the Valley to protect the oak trees. Acorns were a central staple of their diet, Black oak acorns providing almost 60% of it. The acorns were lain on a slab of rock in the sun to dry. Then they were ground up in small holes atop big granite slabs also called a mortar and pestal. Once they had been sufficiently ground down to a fine powder, the acorn “flour” was put into a shallow depression at the edge of the river. This depression was lined, often with nearby ferns, to keep the acorn powder from being lost in the sand. Rocks were then heated in a fire and placed into the small depression with the acorn flour to heat and potentially boil the bitter taste out, to make it more palatable. When soaked and edible, the flour, now turned to a mush due to the water, was taken out and put into willow cooking baskets. It was heated over a fire, and consumed either as a mush, or baked into a flat bread. National Park Service naturalist, Will Neely created a list of the plants commonly used by the Ahwahnechee. Black oak, sugar pine, western juniper, canyon live oak, interior live oak, foothill pine, buckeye, pinyon pine nuts provided acorns and seeds for food. Other plants provided smaller seeds. Mariposa tulip, golden brodiaea, common camas, squaw root, and Bolander's yampah provided edible bulbs and roots. Greens eaten by the Ahwahnechee included broad-leaved lupine, common monkey flower, nude buckwheat, California thistle, miner's lettuce, sorrel, clover, umbrella plant, crimson columbine, and alum root. Strawberry, blackberry, raspberry, thimbleberry, wild grape, gooseberry, currant, blue elderberry, western choke cherry, Sierra plum, and greenleaf manzanita provided berries and fruits. The Ahwahnechee brewed drinks from whiteleaf manzanita and western juniper. Commonly used medicine plants included Yerba santa, yarrow, giant hyssop, Brewer's angelica, sagebrush, showy milkweed, mountain dogbane, balsamroot, California barberry, fleabane, mint, knotweed, wild rose, meadow goldenrod, mule ears, pearly everlasting, and the California laurel. The tribe used soap plant and meadow rue to make soap. They used fibers from Mountain dogbane, showy milkweed, wild grape, and soap plant for cordage. Baskets were