At 8 kilometres (5.0 mi) in length, it is believed to be the largest alp in Switzerland.
[1][2] The Urner Boden is traversed by the eastern approach road to the Klausen Pass to the west, from the village of Linthal in the canton of Glarus.
The pass road is normally closed between October and May, and during this period the Urner Boden is only accessible from the east via Linthal, involving a road journey between the two halves of the municipality of some 126 kilometres (78 mi).
[2][3] In summer, PostBus Switzerland operates a bus service which provides several daily return journeys to Linthal and Spiringen.
Outside that period, a minibus service called the Urnerboden Sprinter provides three connections a day to Linthal.