Trails Illustrated has mapped the National Parks for more than 25 years
The National Park Service (NPS) preserves unimpaired the natural and cultural resources and values of the National Park System for the enjoyment, education, and inspiration of this and future generations. The Park Service cooperates with partners to extend the benefits of natural and cultural resource conservation and outdoor recreation throughout this country and the world. National Geographic has worked with the NPS to map more than 75 parks from Alaska to Florida.