The structural and industrial materials of California (1906)
Aubury, Lewis E., 1862- · Sacramento, W. W. Shannon, Superintendent state printing · leaf 227
north of Lincoln, where there is an abundance of very fine clayoccurring in the lone formation and overlying a vein of lignite. Theclay has been excavated by a series of benches for about 50 feet indepth. In the Xllth Report of the State Mining Bureau, 1896, page 220 STRUCTURAL AND INDUSTRIAL… … Rich Flat.—In Sec. 15, T. 12 N., it. .^ E., one mile south of Auburn,on Rich Flat, in an open cut at the breast of an old drift, there isexposed a variety of clays in small occurrences. The colors are white HIGH-GRADE CLAYS —RIVERSIDE COlNTY. 221 and light brown, some containing fine, grit-like…
Building stones · Portland cement · Clay · Mines and mineral resources
Internet Archive · Prelinger Library · Public Domain Mark 1.0. Free to use for anything.
