Palmer Lake is adjacent to the Santa Fe Regional Trail, which runs south through Monument to the southern boundary of the Air Force Academy and follows part of the old Atchison, Topeka and Santa Fe Railway. One of the largest continuous trails in El Paso County, the graveled route supports a wide variety of activities such as biking, hiking and horseback riding. This 15-mile trail is one of the longest continuous trails in El Paso County where locals and visitors can enjoy biking, hiking and horseback riding year-round. In winter, cross-country skiers and snowshoers enjoy the pathway in the winter.