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http://www.rmef.org/TheHunt/HuntPlanner.aspx
click on the MAP INFO tab and click current elk range.
I don't think its exactly what you want but its a start. Colorado has lots more info on their website than Wyoming does unfortunately.
Hard to find but wy has most of what you're looking for.
https://wgfd.wyo.gov/Wildlife-in-Wyoming/Geospatial-Data/Big-Game-GIS-Data
The winter/summer data is also included in the job completion reports.
Oh that info looks incredible but it won't open for me do you have issues opening it?