In fact, landslides triggered by the May 12 earthquake had exacerbated the destruction in Beichuan. Take Maoba Middle School for instance, all traces of its existence – save a basketball hoop in the far end of a field – had "vanished" under fallen boulders from the hills. Of the 400 or more students and teachers there, merely one to two percent survived. What's more disturbing was that the landslide had blocked the flows of the White River, creating an artificial lake in its upstream, near the Kuzhuba hydrolic dam. If the water pressure built up and threatened to burst the dam, the cost of life and property would be dreadful. The risks involved had added urgency and hazards to the rescue work that was racing against time.
The Taiwanese Formosat-2 satellite has collected an image that shows this landslide. This is shown below, annotated to show the landslide:
It appears from this image that the school is not the only structure to have been hit by this landslide. This is also apparent from these newswire photographs, which show the site:
Caption: Rescuers looks at a Chinese flag and a basketball loop among the rubble of a school after it was flattened by falling rocks following Monday's 7.8 magnitude earthquake in Beichuan county, Sichuan province, China, Friday, May 16, 2008.