Harriet, I don't claim to be a botanist (but my first-generation-off-the-mountain mother-in-law is darned close to one) & this is definitely a Mountain Laurel - state flower of Pennsylvania & blooms all over the eastern mountains. There may, of course, be other varieties which may account for the different color & blossom shape in your photo? And while we're at state flowers, here's one of my favorites, the NC State flower, the Dogwood. :-)