Abstract William J. Wiltzius (1933-2013) was a long-time employee of the Colorado Game and Fish Department and a respected expert on Colorado's fish culture and stocking history. The collection compiles Wiltzius' research about hatcheries, sport fishing, and the people who established fish culture in nineteenth-century Colorado. Materials include scrapbooks of newsclippings, computer printouts and photocopies of news articles and genealogical information, published reports, notes, correspondence, and...