Donner Summit Poster State Park Among the ancient fossilized trees

Among the ancient fossilized trees of a prehistoric forest

The two-ton stalactite has been celebrated over the years for its striking heart-like appearance

and the only national park to host its travellers

Called the “Eden of Wayne County” the small settlement of Junction was home to no more than 10 Mormon families beginning around 1879

When Grosvenor finally visited Utah in 1932

Donner Summit Poster State Park Among the ancient fossilized treesProduct Details 14 x 22 poster Interpretive Copy Said to have eliminated for all time the terrors of the Donner grade, Rainbow Bridge facilitated better passage over the Sierra Nevadas. Before the bridge and connecting highway were built, 18% grades plagued motorists who braved this steep stretch of the Lincoln Highway. When it opened to traffic in 1926, the bridge ushered in a new era of smooth travel over what became California US Highway 40.