Three Wyoming moose herds have been tracked by GPS collar across the Greater Yellowstone Ecosystem — but the USGS has not yet published corridor polygons for moose, so this map shows the actual tracked animal paths instead of summary polygons. This map shows every USGS-mapped moose migration corridor across the western United States — 3 herd units, 88 individually GPS-collared animals, and 233 tracked migration segments, recorded between 2005 and 2022.
Click any shape to see herd-level statistics. Filter by state to focus on the herds local to you, or pick a featured corridor at the bottom of the page to load that herd’s GPS tracks onto the map.
Loading migration corridors…
The moose migration in numbers
The numbers behind this map come from a multi-decade effort by the USGS Corridor Mapping Team and state wildlife agencies across ten western states. For moose, that effort has produced:
88 individual moose tracked by GPS collar, often for multiple years each
233 migration tracks recorded between 2005 and 2022
3 distinct herd units mapped across ten states
0 km² of corridor identified from the GPS data
About moose migrations
Western moose (Alces alces) are the largest member of the deer family in North America — bulls can weigh more than 1,000 pounds. Unlike mule deer or pronghorn, moose tend to occupy year-round home ranges rather than make distinct seasonal migrations, which is why USGS hasn’t published corridor polygons for them.
The three Wyoming moose herds tracked here — Jackson North, Jackson South, and Sublette — show looping patterns of use through willow-bottom riparian habitat, lodgepole pine forests, and aspen stands. Even without summarising corridor polygons, the GPS tracks reveal critical habitat patches that conservation planners can prioritise for protection.
Western moose populations are generally declining, with parasite loads, warming summer temperatures, and habitat changes all under investigation as causes. Wyoming’s Sublette and Jackson populations have been particularly closely monitored.
Moose herds by state
This dataset contains tracked herd units in the following states. Click a state to see every herd mapped within it.
I'm Daniel O'Donohue, the voice and creator behind The MapScaping Podcast ( A podcast for the geospatial community ). With a professional background as a geospatial specialist, I've spent years harnessing the power of spatial to unravel the complexities of our world, one layer at a time.
