Bushwhacking: In sub-Arctic Alaska and Canada, climb to 3,000 feet or more in elevation (the exact elevation varies with location) and stay there. You'll encounter less brush and more wide-open tundra. Be aware that some maps show avalanche paths as being "clear" of timber when they're actually filled with horrific patches of slide alder.
Alaska's Tordrillo Mountains: High, Wild, and Unknown
The Tordrillo Mountains are so rugged, you'd swear you're the first human to set foot there.