May 27 update: Snow is forecast for Passo di Gavia on Saturday. Apparently, there is already 4 to 6 meters by the road side. The course may be changed. Climbs for likely alternate route include Trivigno (14.5km/8.9%), Aprica (6.2km/7.4%), Mortirolo from Grosio (14.8km/8.3%), then Tonale. More to come. — Steve

May 29 update: This is another difficult mountain stage including the highest point of the race, the Cima Coppi. Check out the links for details on the climbs. Passo di Gavia is open. (see video still) No change to the original route. It's raining at the finish in Tonale. Should be another epic day.
  3D Course Flythrough (01:00 no audio) — raisport.rai.it
Detailed Climb Profiles and Contour Maps — gazzetta.it

This famous photo of the one of most influential cycle tourers, Jobst Brandt, was taken on a narrow ledge of the Gavia Pass now replaced by a tunnel. (photo: Jobst Brandt)

Relive the bizzard at the top of the Gavia Pass during the 1988 Giro d'Italia where American Andy Hampsten placed 2nd on the day and ended the event as the first and only non-European winner of the Giro.

A scenic ride by motorcycle on the Gavia Pass (video:bikerdream)