Grade on US 89
What is the steepest grade and for how long on US 89 from Gardiner,MT to Mammoth Hot Springs.
Forum Discussion
From Google maps I estimated that US89 at I90 is about 4600 ft, at Gardiner 5600ft, 6000 at the campground, and 7200 on the main park plateau.
No one is going to pushing you to make the climb past the Hot Springs in record time. They will all be in RVs like yours.
West Yellowstone and the Lake area also about 7200.
The road to the south climbs a bit before dropping some to Grand Tetons. There is also a modest pass on the east side of the park before dropping a long ways to Cody.
No one is going to pushing you to make the climb past the Hot Springs in record time. They will all be in RVs like yours.
West Yellowstone and the Lake area also about 7200.
The road to the south climbs a bit before dropping some to Grand Tetons. There is also a modest pass on the east side of the park before dropping a long ways to Cody.
