Supervisorial District No. 1 boundaries are as follows:

Beginning at a point on the North Boundary of Sierra County at the Intersection with the East line of Section 3, T. 21N. R. 11E., M.D.B.& M.; thence Southerly along the Easterly lines of Sections 3, 10, 15, 22, 27 & 34, T. 21 N., R. 11E., M.D.B.&M. to the North line of Section 3, T. 20N., R. 11E., M.D.B.&M.; thence Easterly along said North line of said Section 3 to the Northeast corner of said Section 3; thence Southerly along the East lines of said Section 3 and Section 10, T. 20N., R. 11E., M.D.B.&M. to the Southeast corner of said Section 10; thence Westerly along the North lines of Sections 15 & 16, T. 20N., R. 11E., M.D.B.&M. to the Northwest corner of said Section 16; thence Southerly along the West line of said Section 16 to the Southwest corner of said Section 16; thence Westerly along the South lines of Sections 17 & 18, T. 20N., R. 11E., M.D.B.&M. to the Southwest corner of said Section 18; thence Southerly along the West lines of Sections 19, 30 & 31, T. 20N., R. 11E., M.D.B.&M. to the Southwest corner of said Section 31, said corner also being the Northwest corner of Section 6, T. 19N., R. 11E., M.D.B.&M.; thence Easterly along the North line of said Section 6 to the Northwest corner of Government Lot 18 within said Section 6; thence Southerly along the Westerly lines of Government Lots 18 & 19 within said Section 6 to the Southwest corner of said Government Lot 19; thence along the Southerly lines of Government Lots 19, 20, 21, 16, 13 & 1 within said Section 6 to the Southeast corner of said Government Lot 1, said corner also being the Southeast corner of the Northeast ¼ of the Northeast ¼ of said Section 6; thence Southerly along the East lines of said Section 6 and Section 7, T. 19N., R. 11E., M.D.B.&M. to the Southeast corner of said Section 7; thence Easterly along the North lines of Sections 17 & 16, T. 19N., R. 11E., M.D.B.&M. to the Northeast corner of said Section 16; thence Southerly along the East lines of Sections 16, 21, 28 & 33, T. 19N., R. 11E., M.D.B.&M. to the Intersection with the South Boundary of Sierra County also being the Middle Fork of the Yuba River; thence Southwesterly along said South Boundary to the Southwest corner of Sierra County; thence Northerly along the West Boundary of Sierra County to the Northwest corner of Sierra County; thence Southerly and Easterly along the North Boundary of Sierra County to the Intersection with the East line of Section 3, T. 21N., R. 11E., M.D.B.&M., said Intersection also being the Point of Beginning.