LONDON, ENGLAND—A flint tool, campfires, animal bones, and a possible fish trap made of two rows of wooden stakes have been found on the construction site of the new U.S. Embassy in London. Kasia Olchowska of the Museum of London Archaeology thinks that the land would have been too wet to have been a permanent settlement, but it would have made a fine hunting or fishing camp. The flint, which was discovered among water-smoothed gravel, was probably swept out of its original context by a river channel. Experts think that it was probably crafted between 100,000 and 12,000 years ago. Other stone tools include scrapers and a plunging blade. Carbon dating suggests that the rest of the site is up to 11,750 years old. “We think that [the fires] are potentially marking a spot that people were coming back to seasonally,” Olchowska told Live Science.