Columbia subject headings:
Camp Polk Meadow Preserve (Or.)--Biography.
Camp Polk Meadow Preserve (Or.)--History.
Camp Polk Region (Or.)--Biography.
Camp Polk Region (Or.)--History.
Frontier and pioneer life--Oregon--Camp Polk Region.
Natural history--Oregon--Camp Polk Meadow Preserve.
Natural history--Oregon--Camp Polk Region.
Pioneers--Oregon--Camp Polk Region--Biography.
Harvard subject headings:
Camp Polk Meadow Preserve (Or.)--Biography.
Camp Polk Meadow Preserve (Or.)--History.
Camp Polk Region (Or.)--Biography.
Camp Polk Region (Or.)--History.
Frontier and pioneer life--Oregon--Camp Polk Region.
Natural history--Oregon--Camp Polk Meadow Preserve.
Natural history--Oregon--Camp Polk Region.
Pioneers--Oregon--Camp Polk Region--Biography.
Princeton subject headings:
Deschutes County (Or.)--History.
Land use, Rural--Oregon--Deschutes County.
Meadows--Oregon--Deschutes County--History.
Natural history--Oregon--Deschutes County.