"Twelve species of orchids are found in the greater Yellowstone ecosystem. Several places in Yellowstone and Grand Teton Parks are home to the Calypso Orchid, also known as Fairyslipper. The calypso orchid is resembles a lady’ slipper and appears in abundance in shady areas in coniferous forests and near lakes. Two of the many places to find them include Emma Matilda Lake and Specimen Creek. : The Specimen Creek area is also known for delicate pink Calypso Orchid often found in large patches. Emma Matilda Lake is in the Jackson Lake area of Grand Teton National Park. (Directions: G o up Pacific Creek Road, 4 miles east of Jackson Lake Junction on the road to the Moran entrance. There is a pullout for Emma Matilda Lake 2 miles up this road, or you can go one-half mile farther, take a left on Two Ocean Lake Road, and go to the Two Ocean Lake trailhead parking lot.)"
Yellowstone National Park: Yellowstone Wildflowers - TripAdvisor