Early gold discovery; description of government, 1859. Vickers-Clear Creek & Boulder. p.273 Early history, 1860. Vickers.Clear Cr.& Boulder. p.281 Description; mining interests. R. M. News. Aug. 17, 1872. p.4 c.2 Ore shipments; general business. R. M. News. Jan. 1, 1879. p.1 c.5 Location; description. R. M. News. Jan. 1, 1879. p.3 c.6