From: Evaluation of metadata describing topographic maps in a National Library
Iteration | Date | Geographic location | Scale of map | Mapping methods | Map format | Source materials used to develop the map |
---|---|---|---|---|---|---|
I | 28,854 maps (82%) | x | x | x | ||
II | 28,773 maps (82%) | x | x | |||
III | 28,206 maps (80%) | x | ||||
IV | 6,481 maps (18%) |