Pressed brick plant at Roseau. (The Bemidji Daily Pioneer, Monday, March 20, 1905, Volume 2, Number 272, Page 2)

At the town of Roseau are several acres of similar modified drift at least 10 feet thick. In working and burning it shows a very much better quality than that at Badger. A few yellow brick were made from it several years ago. (Clays and Shales of Minnesota, Frank F. Grout and E. K. Soper, The University of Minnesota, Minneapolis, Minnesota, 1914, Page 152)