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Regions with same name.
Badge of United States of AmericaUnited States of AmericaBadge of MarylandMaryland Badge of Howard CountyHoward County

Unowned Region

Columbia unruled Columbia

Thus far 10 distinct quadrants have been played within the region Columbia.
When? Ruler Mapper
Current Score
For more information about rulers or mappers, look at this Page in our Wiki.

Subregions of Columbia

Till now Columbia has 3 played regions below it. Following direct parts of Columbia have been played until now:
Neither Ruled nor Mapped Subregions up to now: Long Reach, Oakland Mills, Owen Brown.

Sibling Regions of Columbia

Played regions on same layer like Columbia so far:
Neither Ruled nor Mapped Sibling Regions to date: Fulton, Scaggsville.