>>2478810>The mountains in your pic have those typical flattened, blunt topsA typical feature of former extensive glaciation. There are still many craggy sharp technical peaks even despite this. Many Scandinavian mountains have the same defining features and also have many sharp peaks mixed in as well.
>summits barely rising above the treelineThe treeline is at 3000-3500m below 40N in NA. It drops to as low as 500m or lower in interior AK.