sentences:  It was built between 1965 and 1967 to commemorate power station building workers who had died, is dedicated to the patron saint of mountain engineers, and serves as the chapel for the community.The Silvetta reservoir stands at exactly the same elevation as the pass and is the highest of the Ill power plant group.The Ill has its source south of the pass, close to which it would occasionally change its path and instead of heading west towards the Rhine, it would sometimes flow eastwards into the Inn.