[Talk-us] holes in Columbus OH?

[Nathan Edgars II]

On 6/12/2012 12:45 AM, Peter Dobratz wrote:
> I currently have the opportunity to do some mapping in Columbus, Ohio.
>   The admin boundary for the city seems a bit odd:
>
> http://www.openstreetmap.org/browse/relation/182706
>
> There seem to be a lot of holes in the multipolygon relation, and it
> seems strange to me that there are so many places within the city that
> are not part of the city.  Is anyone more familiar with this area that
> give an explanation for this?

Cities generally annex properties one-by-one. This can create enclaves 
where the city or owners didn't want annexation.

http://www.openstreetmap.org/?lat=28.51325&lon=-81.36011&zoom=17&layers=M

Here's an official source that shows the holes in Columbus: 
http://gis.columbus.gov/oss/