High school students dig up SF history

History came alive Friday for high school students in one lucky social studies class. They were invited by the National Parks Service to dig up some of San Francisco's past near Lands End.

The students from Ida Wells High School were able to unearth the tile floor of the Sutro Height Conservatory, which was demolished 80 years ago. Other artifacts collected will go in the parks service historic record.

Their teacher set up a whole lesson plan before the dig, teaching the kids about archeology and changing landscapes.