An Umacha is a Miwok Indian structure made of cedar bark and used for shelter. Before the Europeans came to California, the Coast Miwok people were the inhabitants of what we now call Marin and southern Sonoma Counties in northern California. The Coast Miwok are a federally recognized tribe. Legislation was signed in December 2000 granting the Federated Indians of Graton Rancheria, formerly known as the Federated Coast Miwok, full rights and privileges afforded federally recognized tribes. Currently there are around 500 members registered with the tribe.
Traditional Umacha or Kotca - used for shelter bythe Coast Miwok people of Northern California.