I think neither- It is that southern Idaho supports more glassing. It is more open and it melts out earlier in the spring. North Idaho has grizzlies, yes, but it also thicker and darker timber and is harder to glass.In 16 according to IDFG site there aren’t a lot of spot and stalk bears taken, trying to avoid areas known for grizzlies. I know they can pop up just about anywhere but the Eastern border and way north looks to have the most. 16 was suggested by another person on here but the river he mentioned seems to be mostly in Montana. Something else I noticed from the IDFG site is a lot of spring spot and stalk bears are taken from the units next to Boise, is it that there are just more black bears there or just more hunters close to Boise?
@Backofbeyond knows the South better than I do. I'm a North Idaho guy.
Spot and stalk bears are killed in the canyonlands of central Idaho as well. They stand out pretty easily there, but it is as steep as a cow's face.
Just so we understand. Grey's River is in Wyoming. The closest unit in Idaho is GMU 66.
The popularity of spot and stalk bear hunting in a lot of the west is a relatively new thing. It is driven a lot by newer media content by HuntTalk owner Randy Newberg, MeatEater's Steven Rinella, and others. Traditionally spring bears in North Idaho are killed over bait or with hounds. I myself have only started actually targeting spring bears in the last couple of years. There is also a large fraction of the annual bear kill that comes from "by-kill", happening on bear while hunting something else. I know I have certainly seen more that way than actually trying to find them.