34p., five large folded b&w line maps, in side-stapled 9x6 inch self-wraps. Cover (i.e., p.1) bears a faint rubberstamp (rec'd 1938) and some red-pencil librarianese. Good copy, and the maps appear entirely unmolested. Hydraulic mining messed up agricultural lands, riverine vocations, the look of the countryside. Markham recommends against federal involvement in the clean-up. 74th Congress 1st session, Document no. 50.
Affects Yuba, Bear, and American Rivers, and various reservoirs.