The west entrance follows the Madison River Valley, which is quite broad, offering rich pastures for herds of elk and bison. The river itself is a famous fishing stream much prized by anglers. Along the length of the river a host of wild fowl can be found together with trumpeter swans and the occasional bald eagle. The area along the edge of the road shows the signs of old volcanic activity with its obvious lava deposits.

The road and river pass between Mount Haynes and Mount Jackson, both peaks over 8,200 feet high and both named after famous 19th century photographers. About a mile from Madison Junction lies a wide meadow through which the river meanders. This location is an excellent one for viewing herds of elk. This is also an excellent location to witness the sunrise over the Park, as there is thermal activity on the far bank of the river, which adds to the atmosphere.