Public domain (courtesy of H2O Radio) In 1948, a World War II-era bomber crashed into Lake Mead, the massive reservoir formed by Hoover Dam that straddles the Arizona-Nevada border. After several failed attempts to locate the plane, it was finally discovered in the early 2000s—still remarkably intact. As lake levels fall, will the draw to see the aircraft finish it off? Lake Mead, Nev.— The official crash report said the pilots were flying low to collect a last bit of scientific data before returning to base and that the instruments on their B-29 aircraft were improperly calibrated. Also, the account said that Lake Mead—smooth as glass on that July morning in 1948—distorted their depth perception and sent the plane skipping like a stone across the water.