The mapping agency said shortly after the accident that it only listed ski lifts with towers that rose 100 feet.

Colonel Rodgers said in his report that the mapping agency had copied some of its data from the wrong Italian map.

Details of the types of data collected by national mapping agencies are discussed briefly in Chapter 2.

It is the national mapping agency for Italy.

Britain's national mapping agency (ordnance because such work was originally undertaken by the army)

Some national mapping agencies also deal with cadastral matters.

In every country, thousands of such known points exist and are normally documented by the national mapping agencies.

It came as the mapping agency was installing a new system, which caused the breakdown.

Analysts at the mapping agency would look at the photographs on computer screens and describe them over the telephone to officials who needed the information.

But problems at the mapping agency continued to flare for months, officials said.