161. Natural hardwood stands, Tom Swamp-North Format: Maps/Atlases Collection: The Harvard Forest Map Collection Date: 1946 Institution: Harvard Forest Archives
162. Natural hardwood stands, Tom Swamp-North Format: Maps/Atlases Collection: The Harvard Forest Map Collection Date: 1946 Institution: Harvard Forest Archives
163. Natural hardwood stands, Tom Swamp-South Format: Maps/Atlases Collection: The Harvard Forest Map Collection Date: 1946 Institution: Harvard Forest Archives
164. Natural hardwood stands, Tom Swamp-South Format: Maps/Atlases Collection: The Harvard Forest Map Collection Date: 1946 Institution: Harvard Forest Archives
165. Natural Mixed Wood Stands - overlay Format: Maps/Atlases Collection: The Harvard Forest Map Collection Date: November 1955 Institution: Harvard Forest Archives
166. Natural Mixed Wood Stands - overlay Format: Maps/Atlases Collection: The Harvard Forest Map Collection Date: November 1955 Institution: Harvard Forest Archives
167. Natural mixed wood stands, Tom Swamp-North Format: Maps/Atlases Collection: The Harvard Forest Map Collection Date: 1946 Institution: Harvard Forest Archives
168. Natural mixed wood stands, Tom Swamp-North Format: Maps/Atlases Collection: The Harvard Forest Map Collection Date: 1946 Institution: Harvard Forest Archives
169. Natural mixed wood stands, Tom Swamp-South Format: Maps/Atlases Collection: The Harvard Forest Map Collection Date: 1946 Institution: Harvard Forest Archives
170. Natural mixed wood stands, Tom Swamp-South Format: Maps/Atlases Collection: The Harvard Forest Map Collection Date: 1946 Institution: Harvard Forest Archives
171. Natural Softwood Stands Prospect Hill - overlay Format: Maps/Atlases Collection: The Harvard Forest Map Collection Date: November 1955 Institution: Harvard Forest Archives
172. Natural Softwood Stands Prospect Hill - overlay Format: Maps/Atlases Collection: The Harvard Forest Map Collection Date: November 1955 Institution: Harvard Forest Archives
173. Natural softwood stands, Tom Swamp-North Format: Maps/Atlases Collection: The Harvard Forest Map Collection Date: 1946 Institution: Harvard Forest Archives
174. Natural softwood stands, Tom Swamp-North Format: Maps/Atlases Collection: The Harvard Forest Map Collection Date: 1946 Institution: Harvard Forest Archives
175. Natural softwood stands, Tom Swamp-South Format: Maps/Atlases Collection: The Harvard Forest Map Collection Date: 1946 Institution: Harvard Forest Archives
176. Natural softwood stands, Tom Swamp-South Format: Maps/Atlases Collection: The Harvard Forest Map Collection Date: 1946 Institution: Harvard Forest Archives
177. Old Growth Sample Plot Mount Pisgah Showing Distribution of Trees Creator: Smith, H. A. Format: Maps/Atlases Collection: The Harvard Forest Map Collection Date: 1927 Institution: Harvard Forest Archives
178. Onesime E. and Charlotte E. Nault Land Creator: Berry, W. L. Format: Maps/Atlases Collection: The Harvard Forest Map Collection Date: September 17, 1974 Institution: Harvard Forest Archives
179. Open Fields, Pastures, Abandoned Fields, and House Influence Zones in Petersham Creator: Gould, E. M.; Lyford, Walter Henry, 1909- Format: Maps/Atlases Collection: The Harvard Forest Map Collection Date: 1974–2014 Institution: Harvard Forest Archives
180. Open Lands in Petersham 1970 Creator: Gould, E. M.; Geological Survey (U.S.) Format: Maps/Atlases Collection: The Harvard Forest Map Collection Date: 1970–2014 Institution: Harvard Forest Archives