Tourist presumed dead after fall into hot spring

Park rangers navigated a dangerous landscape where boiling water flows beneath a fragile rock crust, searching Wednesday for a man who reportedly walked off a boardwalk and fell into a hot spring at Yellowstone National Park. The man was presumed dead after a witness reported that a man in his early 20s had traveled 225 yards off the pathway Tuesday before falling into one of one of the hottest and most volatile areas in Yellowstone. The witness is considered credible, authorities said. The circumstances of the man’s fall were not yet known, but it follows several high-profile incidents at the rugged park, where tourists went off designated pathways onto unique landmarks, sometimes leading to injuries, or got too close to wildlife./ AP . More here .