Hallo aeschbi,
klar reichen 2 Wochen für einen Überblick. Viel mehr wirst du um die Jahreszeit wohl auch nicht erreichen. Montana hat seinen Namen schließlich wegen seiner Höhenlage bekommen. Wyoming liegt ebenfalls im Westteil sehr hoch. Die großen Attraktionen wie Yellowstone, Grand Teton und Glacier NP könnten nach Wintereinbrüchen schon teilweise gesperrt sein. Ich habe dir mal als Beispiel zwei Infos aud Map'n'Go kopiert. Daraus kannst du erkennen, dass du im Oktober Schwierigkeiten bekommen kannst, dich in Montana und Wyoming frei zu bewegen.
Beartooth Scenic Highway
Beartooth Scenic Highway [in/near Red Lodge, MT], US 212, leads from Red Lodge to the northeastern entrance of Yellowstone National Park via Cooke City. The American Indians called the original Beartooth Pass the "trail above the eagles." This 64-mile road begins at 5,650 feet and rises to the Beartooth Plateau via a series of switchbacks.
After cresting the plateau at an elevation of almost 11,000 feet, where an unobstructed view of more than 75 miles is possible, the road winds past snowfields, small lakes and fields of flowers. Finally it descends into a dense pine forest, passing tumbling waterfalls and streams interspersed with occasional jagged peaks.
Many scenic overlooks have been constructed. Even in mid-summer, cool temperatures can be expected at higher elevations; a jacket or sweater is recommended. Allow 3 hours minimum. The two-lane highway is usually open May through September.
Many Glacier Region
Many Glacier Region [in/near Babb, MT], in the n.e. sector of the park. encompasses Swiftcurrent Lake, from which branch many deep, glaciated valleys. The area is 13 miles by road from US 89 at Babb or by trail from Sun Point, Granite Park, Belly River and Waterton Lake. Other trails lead around Swiftcurrent and Josephine lakes and to Morning Eagle Falls, Grinnell Glacier, Ptarmigan Lake and Tunnel and Cracker, Grinnell and Iceberg lakes.
Launch trips on Swiftcurrent and Josephine lakes depart daily at 9, 11, 2 and 4 (also at 3, July-Aug.), mid-June to early Sept. Allow 2 hours minimum. Naturalists conduct daily field walks and nightly programs at the campground and hotel.
Ich würde diese Staaten im Sommer besuchen. Sonst könnte die Enttäuschung über gesperrte Straßen groß sein.