Day 43:
Starting point: Idaho Falls ID
End point: Idaho Falls ID
Distance by vehicle: 524 km
Hiking distance: 2.3 km
Today we drove several scenic drives northeast of Idaho Falls. We saw a succession of very varied landscapes, ranging from sand dunes, lava fields, forests, alpine peaks, meadows, waterfalls, canyons. And all this under almost always clear skies.
Our first scenic drive was the Fort Henry Historic Byway. The road is named in honor of the first settlement during colonization in the area. This road crosses the St. Anthony Sand Dune State Recreation Area. We traveled there in a loop formed by Black Sand Road on the south followed by White Sand Road on the north. Given the early hour, fresh animal tracks on the dunes were visible.
Further on, we planned to drive two more trails into the large expanse of lava fields, the Civil Defense Caves Road and the Ice Caves Road. However, recent rainfall had created large pools of mud and it would have taken us ages to get through them. So we decided not to go onto them.
Continuing north, we passed large pastures, one with a large herd of sheep and a few goats. A small trailer was parked in the pasture, probably the shepherd's.
Continuing on, we came across Henrys Fork Snake River, a river we crossed a few times during the day.
Also visible in the previous photo is the high summit of Sawtell Peak, our next destination, reached by a very good forest road.
This peak is located on the edge of the immense Island Park Caldera, an ancient crater of a volcano that erupted more than a million years ago. This caldera, measuring 80 km by 65 km, is one of the largest in the world. Even from the top of Sawtell Peak, it was difficult to imagine the size of this caldera. We were then about 40 kilometers from Yellowstone National Park, containing another caldera of the same volcanic complex.
Far to the southeast on the other side of the caldera could be seen the Teton Range, the youngest mountain range of the Rocky Mountains. In particular, the three peaks of the Grand Tetons, so named by French trappers lacking some affection...
Leaving Fort Henry Historic Byway, we traveled along the Mesa Falls Scenic Byway. We stopped to see Upper Mesa Falls. Particularly, the rocks further away are of a different nature from those under the falls being very hard basalt. This testifies that the relief was created, then eroded and subsequently filled again by eruptions.
A little further south, we made another stop to see Lower Mesa Falls, from a much more distant viewpoint.
Finishing the Mesa Falls Scenic Byway, we continued on another scenic route, the Teton Scenic Byway, the star of which was obviously the Teton Range. This road runs through a lower altitude and is a very agricultural area.
Today was our last day exploring Idaho. Tomorrow, we will head further east, slowly beginning our return toward home. We are still evaluating our options because one of the main attractions that we had planned is a forest road climbing to more than 2800 meters and which we cannot confirm if it is still passable given the presence of snow at 2200 meters today. One thing is certain, we want to avoid interstates as much as possible by taking secondary roads instead.