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- Map of Public Surveys in Colorado Territory to accompany a report of the Surveyor Gen., 1863
- Map of Colorado Territory in 1863 showing place names and geographical features (with relief shown by hachures). Scale 1:1,140,480
- Map of Colorado Territory, Compiled from Government Maps & actual Surveys made in 1861.
- Map of Colorado Territory compiled from government maps and surveys. Includes place names, rivers and some geographical features, with relief shown by hachures.