The Northwestern Brick yard of Perham offers brick for well curbing that will last forever. (unknown Perham newspaper, November 5, 1908)
Two miles north the railroad station at Perham is a deposit of laminated clay covering at least 20 acres and 15 feet in thickness. Yellow and blue-gray clays alternate in this deposit, the yellowish color due to oxidation having apparently followed the beds which allowed more rapid circulation. A very few limestone pebbles and a great many cylindrical ferruginous concretions occur in the clay. The clay is capped by soil only. The working qualities of the clay are fair, though it is likely to crack in drying. The Northwest Brick Company has been producing common yellow brick from it for nearly 40 years. Conditions are excellent except in the matter of railroad facilities. (Clays and Shales of Minnesota, Frank F. Grout and E. K. Soper, The University of Minnesota, Minneapolis, Minnesota, 1914, Page 140)