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Migration Routes of Mule Deer in Platte Valley South Population in Wyoming

Published by U.S. Geological Survey | Department of the Interior | Metadata Last Checked: January 27, 2026 | Last Modified: 2020-11-09T00:00:00Z
Mule deer in the Platte Valley South population are part of the larger Platte Valley herd unit with an estimated population of 11,000 animals. These mule deer winter in the sagebrush canyons and basins near the Platte and Encampment Rivers, south of Saratoga, Wyoming (fig. 29). Most of these deer migrate southerly 20–70 mi (32–113 km) to portions of the Sierra Madre, Medicine Bow Mountains, and Park Range in northern Colorado and southern Wyoming. Some of these deer move as far south as Rabbit Ears Range and must negotiate numerous fences, highways, and residential development to complete their migrations. These data provide the location of migration routes for mule deer (Odocoileus hemionus) in the Platte Valley South population in Wyoming. They were developed from Brownian bridge movement models using 81 migration sequences collected from a sample size of 28 animals comprising GPS locations collected every 2-8 hours.

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