Started in 1970, the Northwest Architectural Archives at the University of Minnesota brings together the records of architects, engineers, contractors, landscape architects, and interior designers from Minnesota, Wisconsin, Iowa, and the Dakotas. Many of these primary documents have been placed into digital collections, and visitors can use this page to navigate through these delightful and useful offerings. One good place to start is the American Terra Cotta Company Photographs collection. Here visitors can look through examples of the company's work everywhere from Atchison to Winona. Moving on, visitors can also make their way through finding aids for the work of Clarence "Cap" Wigington, who happened to be the first registered African-American architect in Minnesota. All told, there are four digital collections on the site, and well over a dozen finding aids. It's a site that will be very useful to architectural historians and others working in related fields.