The Sublette herd is the largest moose population in Wyoming, numbering approximately 1,800 individuals. This herd winters among the willow-dominated floodplains of the Green River Basin, primarily the eastern foothills of the Wyoming Range; some animals winter also in the Hoback Basin. As a partially migratory population, approximately half of the moose are resident, while migratory individuals travel short distances (14 miles on average, max 45 miles) primarily to tributaries of the Green and Hoback rivers. During spring, most migration routes originate on private ranchlands within the expansive willow bottoms of Beaver, Horse, Cottonwood, and Piney Creeks, as well as the aspen-conifer forests of the Hoback Basin. Migratory individuals typically travel upstream, within or near the same drainage that they spent the winter. During migration, moose encounter many fences, low-use county roads, and some must cross Highway 191 to reach their summer ranges. Migratory moose often arrive ...

The Jackson moose herd inhabits an area 2,023 mi2 (5,239 km2) north of Jackson, Wyoming. The Jackson moose herd was historically abundant with a peak of 3,000–5,000 animals in the early 1990s. However, the herd underwent a dramatic population crash following the large counts in the early 1990s and continues to decline with an average count of 280 animals between 2016–2020 (Wyoming Game and Fish Department, 2022). The migrations of the northern portion of the herd were published in Kauffman and others (2020a). The southern portion of the herd, presented here, resides near Wilson, Wyoming. The southern portion of the herd is partially migratory. Many of the migratory moose move from lower elevation winter ranges along the Snake River to high-elevation summer ranges in the surrounding national forests and Grand Teton National Park (fig. 38). Winter ranges are characterized by riparian, mountain shrub, and aspen communities, and summer ranges include montane meadows and forested habitats. The Snake River corridor serves as a movement pathway between the southern and northern areas and provides an important riparian food resource. Migration distances range from <1 mi (<1 km) up to roughly 13 mi (21 km). Despite hunting season closures and a reduction in licenses, this population has not responded to management changes and continues to be closely monitored by regional wildlife management agencies. These mapping layers show the location of the Migration routes for Moose (Alces alces) in the Jackson population in Wyoming. They were developed from 43 migration sequences collected from a sample size of 14 animals comprising GPS locations collected approximately every 0.5 hour.

Periodic censuses of the population of Canada geese were made from the air and from the ground. Nesting surveys were conducted by searching the study area on foot or in a boat. Each year since 1956 (except 1959) molting geese have been trapped and banded at Turbid Lake, Yellowstone National Park, Wyoming. Data from this source were used to compute mortality and survival rates for the Jackson Hole population. In 1963 colored neck-collars were placed on 284 geese to obtain information about the timing of movements, size of the population migrating through Jackson Hole, and the breeding area of geese which molt at Turbid Lake. Hydrological data were obtained from the Bureau of Reclamation, the u.s. Weather Bureau, and the u.s. Geological Survey. Climatological data were provided by the U.S. Weather Bureau for stations at Jackson, Moose, and Moran, Wyoming.