Thermal Image: NPS
Yellowstone’s Clear Lake Trail has been temporarily closed to protect the public from hazards associated with new thermal activity along the trail.
The "hot spots" indicate a heat source under the crust of the trail. Park geologists will use thermal imaging and a ground survey to assess these new hot spots. (Photo top right is an example of thermal imaging.)
Depending on the findings, it may be necessary to re-route the trail or build boardwalk over the hot spots before the trail can be reopened.
The 1.5 mile Clear Lake Trail is a popular route that overlooks both the Upper and Lower Falls along the Grand Canyon of the Yellowstone. This is an active thermal area.
Three other trails have been reopened after repairs. The boardwalk in the Back Basin of Norris Geyser Basin, Uncle Tom’s Trail along the South Rim of the Grand Canyon of the Yellowstone, and the Wraith Falls Trail are now accessible.
For more info: Yellowstone National Park
Comments
I wouldn't walk on a boardwalk over a hot spot.
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