National Geographic Maps - Trails Illustrated
There is no single author named 'National Geographic Maps - Trails Illustrated'; this refers to a collaborative publishing series produced by Trails Illustrated (a division of National Geographic) that creates topographic maps for outdoor recreation. The series is authored by a team of cartographers and editors rather than an individual, and it focuses on genres such as hiking, camping, and wilderness exploration.
Hiking
Camping
Topographic Mapping