Rangers are seeking assistance in locating a missing woman who was last seen below the Vernal Fall footbridge at 3:30 p.m. on Monday, May 18th. Katrin Lehmann, 31, was last seen when she fell into the Merced River below the footbridge. She is described as 6â tall, weighing 150 pounds, with light brown hair and brown eyes. She was last seen wearing a maroon rain jacket, dark blue pants, light green button shirt, lightweight hiking boots, a light blue backpack, and a dragonfly necklace. Anyone with information on her should contact park investigators at 209-372-0614 or park dispatch at 209-379-1992.