The government's dietary recommendations are 200 IUs a day up to age 50, 400 IUs to age 70, and 600 IUs over 70. But many experts believe that these recommendations are far too low to maintain healthful vitamin D levels.
Crater Lake National Park. Crater Lake National Park is a United States National Park located in southern Oregon. Established in 1902, Crater Lake National Park is the fifth-oldest national park in the U.S. and the only national park in Oregon. The park encompasses the caldera of Crater Lake, a remnant of a destroyed volcano, Mount Mazama, and the surrounding hills and forests.
Klamath Falls, Oregon. Join us in the running of the Annual Crater Lake Rim Runs and Marathon held in beautiful Crater Lake National Park, Orego. Choose between runs of 6.7, 13.0 miles and the Marathon, or if you are a walker, the 6.7 mile walk. All courses are along the very rim of majestic Crater Lake and are at altitudes ranging from 5,980 to 7,850 feet above sea level. Be challenged by rugged mountains and breathtaking views.