There are over 50 national parks in the United States.

They are some of the most beautiful, and most visited, sites in the country.

Mike Oswald has hiked, biked and paddled thousands of miles in the national parks and offers suggestions for getting the most out of your next visit to a national park.

Support 89.7 NPR News and receive a special thank-you gift, including Your Guide to the National Park Maps: An Atlas of the U.S. National Parks Book packages containing DVD sets, books and more.

Guest:

Mike Oswald, travel writer and author of Your Guide to the National Parks and National Park Maps: An Atlas of the United States National Parks