Heritage Photos   /  TM-SPHA Special Places - Abandoned 8. Flour Mills The Mill in Napinka Hartney Google Earth image showing the millrace of the Gregory Mill, the first mill in the Southwest Corner. John Gregory's Mill Two photos of the Gregory Mill site. Remains of the Gregory Mill The flour milling industry was once the most important regional manufacturing business in Manitoba. By the WW I years, improved transportation links, competition from large national companies, and changing consumer habits, took their toll on local businesses in general. Small-town mills were one of the casualties. http://vantagepoints.ca/stories/tale-two-mill-fires/ http://www.virtualmanitoba.com/FalseStarts/10gregory.htm