It's called the Fairy Slipper, Calypso bulbosa. There are two varieties of this exquisite flower that grow in N. America, var. americana which is much more widespread and is distinguished by a yellow beard on the lip. This is the variety that grows only here in the west, var. occidentalis, distinguished by the spotted lip and white beard.
Here's a blog entry that includes our finding it in the North Cascades: Orchids and Serendipity: Goat Mountain
Actually, we've found it in four different locations this spring.
Thanks! Your pics of other wild orchids are amazing! I didn't know we such a large variety of them here in the NW!
Forty-two different native orchids in the state of Washington! Don't know exactly how many, but a similar number in the Oregon. We have really enjoyed hunting them.
there is a nice little paperback book with pictures and descriptions of Oregons wild orchids. Don't remember the author but isc titled The Wild Orchids of Oregon I believe