In the work of Judy Dater, one particular photo, "Imogen and Twinka," created in Yosemite National Park, became one of the most recognizable and iconic images captured by an American photographer. In it, ninety-two year old Imogen Cunningham, a groundbreaking photographer in her own right, confronts and locks gaze with Twinka, who appears as a wood nymph frozen before her camera's lens. The image can been seen in private and major museum collections around the world.