Aspen Independence Pass Area Colorado Trails Illustrated Map 127 - National Geographic Maps: Trails Illustrated Author:National Geographic Maps Each Trails Illustrated map contains detailed topographic information, clearly marked and named trails, recreational points of interest, and navigational aids. National Park series maps contain useful details for planning your visit. State series titles cover popular recreation areas, ideal for done-in-a-day activities. Each map is crafted in co... more »njunction with local land managers, and undergoes rigorous review and enhancement before publication.« less