American middle style has a New Englandy wrench thrown in. EA Robinson. Frost. Elizabeth Bishop. Calm, smooth, self-effacing surface - with incredible cold remoteness lurking underneath.
When you go out west (or down south or even to the mid-Atlantic) you are struck on returning to New England, how really rough, rugged, rocky, gray, salty & cold it is. The Rockies are rocky, but sunny. The only somewhat similar landscape (minus the salt) - upper Great Lakes region, north woods.