One person remains missing after devastating flash floods ripped through the Grand Canyon, where officials rescued 80 hikers and recovered the bodies of two.Parts of the scenic canyon were hit by significant flash flooding on Saturday around 2.30pm, sweeping hikers and backpackers off the trails near the Colorado River.Search crews then used night vision goggles and other equipment to find people who needed to be rescued during the deluge, Incident Commander Dave Black said at a news conference Monday night.By sunset on Saturday, 45 people were rescued and 37 others were evacuated on Sunday while authorities continued to search for 15 missing hikers.Rangers have referred to the park´s permit system and checked vehicle license plates to track the number of missing people as the search efforts continued throughout the day on Monday.'As of right now, they have no reason to believe, from the tips we´ve been through so far, that there's anybody besides the one' missing person, Black said.Yet dangers remained, as the flash flooding severely damaged the only water pipeline into the canyon and forecasters warned more flooding could be possible throughout the night.As a precaution, officials have now barred tourists from staying at lodges and hotels inside Grand Canyon National Park and issued emergency water restrictions for year-round residents. Parts of the scenic canyon were hit by significant flash flooding on Saturday around 2.30pm, sweeping hikers and backpackers off the trails near the Colorado River. This handout image released by the National Park Service shows remnants of stone bridge pylons that were decimated in the flash floods Debris is seen being taken downstream during the flash flooding on SaturdayThe flood occurred deep in the canyon near where the Colorado River flows, around popular lodges and camping areas where people hiking from one rim of the Grand Canyon to the other stop for the night.About half an inch to an inch of rain fell within just half an hour in the rocky area where there's a steep drop in elevation, said National Weather Service meteorologist Justin Johndrow in Flagstaff.'Most of it ran off instantly,' Johndrow said.Horrific videos from the scene in the Grand Canyon showed mudslides tearing through the landscape, as hikers filmed from a suspended bridge above. Large mounds of debris were also seen floating on the brown water.Scores of visitors then had to be evacuated from the area by helicopter. They talked of a massive deluge and rangers warning of rockslides, and saw huge pools of logs and debris rolling down the river as they stood nearby awaiting rescue.Hiker Daniel Evans said it rained several times before the worst 30-minute downpour Saturday afternoon. He had been planning to rest through the hot day and spend the night near the hard-hit Bright Angel campground area.Just one hiker remains missing as of Monday evening People wait near a bridge as a helicopter flies nearby amid the flash flooding