On August 21, 2017, Teton County, Wyoming residents and visitors will have the opportunity to watch as the moon moves fully in front of the sun. This extraordinary moment marks the first total eclipse of the sun visible from all 48 contiguous United States since 1979 and the first visible from coast to coast in the US since 1918.

Due to the planetary motions involved, this totality only occurs over a very thin strip of land, which Teton County is included in! You can see how much of an eclipse other places will be getting on NASA’s Fred Espenak’s interactive map here. More can be understood about the effects of the orbits and why this only occurs on such a small portion of land from this NASA animation. Detailed information about viewing the eclipse safely and enjoyably can be downloaded from a portion of Andrew Fraknoi and Dennis Schatz book Solar Science for the National Science Teacher’s Assocation here.

A large portion of Teton County is in the path of totality for the Total Solar Eclipse, encompassing Wyoming’s Bridger-Teton National Forest,  Grand Teton National Park, The Town of Jackson, Teton CountyJackson Hole Mountain Resort, Snow King Mountain, and Grand Targhee Resort close to Idaho in Alta, WY.

Specific locations like The Kelly Road near the small community of Kelly, WY,  The Gros Ventre Campground, and Moose, WY, are all close to the exact middle point of 60-mile wide shadow known as the path of totality. This is called the ‘centerline.’

The Centerline runs directly through Jackson Hole Airport, Moose-Wilson Road, Gros Ventre Road and North Highway 89. Top viewing of totality stretches as far north as Jackson Lake in Grand Teton National Park.