Public [act] 138-263, 69th Congress. San Miguel County, N. Mex. H. R. 6355, act for acquirement by United States of privately owned lands in San Miguel, Mora, Taos, and Colfax counties, N. Mex., within Mora grant, and adjoining one or more national forests, by exchanging therefor lands or timber within exterior boundaries of any national forest situated within New Mexico or Arizona.