(Photograph) - More than Pounds 70,000 in private donations should save the archaeological dig Flag Fen in Cambridgeshire, from closure. The site was endangered after the withdrawal of funding by English Heritage. Archaeologist Francis Pryor, the director, who discovered the site in 1981, said the falling numbers of school children visiting Flag Fen has made the financial situation more acute. Flag Fen, a rare Bronze Age excavation, is one of the best preserved pre-Roman ceremonial sites in England. Geoff Pearson, a second-year archaeology student from the University of Wales, is pictured with colleagues.