Thayer's Map of Denver Colorado. Located to Tp. Nos 3&4 South Range No. 68 West Arapahoe County. Published by H.L Thayer. Real Estate Mining And Loan Agent Denver. 1879 Thayer's Map Publishing House ... No. 354-1/2 Lawrence Street. Entered ... 1878, by H.L Thayer ... Washington (Raster Image)