<p class="speakable">A young mother drowned Sunday after being swept away at a river crossing near a popular Southern <a href="https://www.foxnews.com/category/us/us-regions/west/california" rel="noopener" target="_blank">California</a> hiking trail, a tragedy that unfolded as a mountain rescue team was stationed on the trail to warn hikers about dangerous conditions.</p><p class="speakable">The San Dimas Mountain Rescue Team said it was talking with hikers about safety tips and river crossings around 8 a.m. while set up at the Bridge to Nowhere trailhead in the East Fork of the San Gabriel River in <a href="https://www.foxnews.com/category/travel/general/national-parks" rel="noopener" target="_blank">Angeles National Forest</a> when "in an instant, everything changed."</p><p>"A frantic runner came charging up the trail yelling for help," the rescue team said in a news release. "A young mother had fallen in at the second river crossing and was swept away by the raging current."</p><p>"Our worst fears became reality," it continued.</p><p>Rescuers immediately launched an emergency response. Multiple agencies responded, including Los Angeles County Fire Department, Air Operations, the LASD Aero Bureau and the <a href="https://www.foxnews.com/category/us/crime/police-and-law-enforcement" rel="noopener" target="_blank">San Dimas Sheriff's Station</a>.</p><p>Crews located the woman after an extensive search. She was pronounced deceased, and the mission shifted to a recovery operation. The woman's identity has not been released.</p><p>Rescuers said they later assisted the woman’s grieving family at the command post.</p><p><a href="https://www.foxnews.com/us/mountain-bikers-find-missing-hiker-wandering-wilderness-underwear" rel="noopener" target="_blank"><strong>MOUNTAIN BIKERS FIND MISSING HIKER WANDERING WILDERNESS IN UNDERWEAR</strong></a></p><p>"All we could offer were hugs, water, shade, and our presence in their darkest moment," the rescue team said. "No words can fix this kind of loss."</p><p>Officials warned that recent conditions have made the East Fork especially dangerous, with swift, high water and multiple required river crossings along the <a href="https://www.foxnews.com/category/travel/general/camping-hiking" rel="noopener" target="_blank">Bridge to Nowhere Trail</a>.</p><p>Authorities are urging hikers to avoid the area until water levels significantly drop.</p><p><a href="https://foxnews.onelink.me/xLDS?pid=AppArticleLink&amp;af_dp=foxnewsaf%3A%2F%2F&amp;af_web_dp=https%3A%2F%2Fwww.foxnews.com%2Fapps-products" rel="noopener" target="_blank"><strong>CLICK HERE TO DOWNLOAD THE FOX NEWS APP</strong></a></p><p>"Turn around if the water looks too fast or too deep," rescuers said. "Your life is worth more than any hike."</p><p>Angeles National Forest is located northeast of <a href="https://www.foxnews.com/category/us/los-angeles" rel="noopener" target="_blank">Los Angeles</a>.</p>