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Grid Points mixed hardwood Stand (distance between small dots = 25') - Key to stake color in field - Lyford Grid Experiment - http://harvardforest.fas.harvard.edu/lyford-grid
Lyford Grid overlayed onto 1947 Prospect Hill I and VII map - Lyford Grid Experiment - http://harvardforest.fas.harvard.edu/lyford-grid
Map 1 Petersham Properties
Map 2 Petersham Properties
Map 3 Petersham Properties
Map 4 Petersham Properties
Map 5 Petersham Properties
Map 6 Petersham Properties
Map 7 Petersham Properties
Map 8 Petersham Properties
Map of Harvard Pond The Harvard Forest Petersham Mass - Nov 1938
Map of Land Sold by President and Fellows of Harvard to R. T. Fisher - 10.78 acres