Without personally going there I can’t say for certain. But you’d be surprised at the terrain cattle can get themselves into. I’d say it’s worth your time to glass and check out these spots though. I find it extremely valuable to focus on getting my own boots on the ground scouting than trying to over analyze areas to glass. The deer will be where you find them. I like to look for terrain with a mix of vegetation that looks like it would lend itself to being glassed.
+1 to this.
If you can see trails from space, more likely than not they are livestock trails. And yes, ranchers graze them up high when the feed is better up there at certain times of the year. In some parts of the great basin, these can also be feral mustang trails.
All that said, mule deer still use them. They just aren't typically doing it in such volume to leave trails that wide and plentiful. I've also seen antelope in some surprisingly high places too on occasion. And, I suspect, elk would use these trails too.
Trail cams help with this - look for trails going right into and out of tree lines, as well as over saddles. Those tend to be good choke-points for game cams. Identify a handful of likely spots online, then get your boots on the ground to check for sign. See sign, put a camera up.
The key thing to know about trails like this and mule deer, is muleys aren't just walking a long a hillside eating grass. If they're on those pathways, often it's them moving
to a good feed spot, from bedding. And that's what you want to find - where they're feeding, and where they're bedding.