Seven-meter (23 foot) walls of snow on either side of the road – higher than the road is wide.
Trains have begun running to the Swiss resort of Zermatt, where more than 13,000 tourists have been trapped for two days because of heavy snow.
The local railway firm said services resumed on Wednesday evening after tracks had been cleared of snow.
The unusually heavy snowfall has caused havoc across the Alpine region, and led to several casualties.
See dramatic photos showed workers cutting through the a 7m (23ft) wall of snow:
Thanks to ptolemy2 for this link