Yellowstone Insider Your Complete Guide to America's First National Park
The ground survey will include additional thermal infrared imaging and a direct measurement of ground temperatures. In select areas of concern, ground temperatures will be measured at a variety of depths to assess heat flow and potential areas of thin crust.
Depending on the findings and before the trail can be reopened, it may be necessary to re-route the trail or build boardwalk over the hot spots.
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. The trail is located in an active thermal area.
Repairs to a section of boardwalk in the Back Basin of Norris Geyser Basin, to the stairs down Uncle Tom’s Trail along the South Rim of the Grand Canyon of the Yellowstone, and to the Wraith Falls Trail have been completed. All three trails have reopened to the public.
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