No. 3 Emmerson Family
Sierra Pacific Industries (SPI) was founded in the 1920s by Curly Emmerson and has been owned and operated by his descendants ever since. Based in Northern California, with additional holdings throughout the Pacific Northwest, SPI is the second-largest lumber producer in the nation. Although the Emmersons seek to expand their holdings through strategic acquisitions, they have given more than 350 square miles of their California holdings to federal, state, and local entities. These transfers have included tracts with high conservation values as well as ones with outstanding recreational features. Among them are the Sacramento River Bend Outstanding Natural Area, Mt. Lola, Martis Peak, Perazzo Meadows, and lands along the American, Yuba, and Rubicon Rivers.