Columbia subject headings:
Harvard subject headings:
Autobiographies.
Families--United States--Psychological aspects.
Mothers and sons--United States--Biography.
Mothers--United States--Death.
National parks and reserves--United States
United States--Description and travel.
Woods, Mark--Family.
Woods, Mark--Travel--United States.
Princeton subject headings:
Cultural property--United States.
Families--United States.
Landscapes--United States.
National parks and reserves--United States.
Natural areas--United States.
Outdoor life--United States.
Woods, Mark.