North Fork Cascade Canyon. Sometimes called Lake Multitude or Lake Not So Solitude, the lake does offer its namesake if you hit the trail early. Despite its popularity, the lake is still one of the backcountry gems (reachable by maintained trails) of Grand Teton National Park. This picture, unfortunately, does not do it justice, as it was taken in late morning after I'd already climbed a nearby peak; this photo is really for that peak's route page.
Teton Range, Wyoming-- July 2007