Given the recent discussion of the Merriam's turkey on here, I though some might be interested in seeing a map of the Merriam's range at greatest contraction (around 1925, dashed lines) and with some of the early restoration successes (up to 1942, lines with double dots in them). The map comes from J. Stokely Ligon's "History and Management of Merriam's Wild Turkey", published by the New Mexico Game and Fish Commission under the Pittman-Robertson Act in 1946.
The maximum hereditary range extended to the vicinity of Montrose and Denver to the north, and Prescott and Flagstaff to the west.