[Talk-us] County borders vs. State borders

[Richard Welty]

On 10/18/11 5:43 AM, Alexander Roalter wrote:
> I recently started converting the Iowa and Minnesota county borders 
> from simple ways to correct boundary relations, which means also 
> removing the doubled ways the adjacent areas share.
>
> So far, so good, but I encountered some questions:
>
> Shouldn't county borders always coincide with state borders? In the 
> case of the Minnesota/Iowa border, there were often differences up to 
> 150 meters. I then used the state borders as the 'better' solution and 
> extended/capped the county lines. What would be the best way to do?
compare the sources of the borders. there are known issues with the USGS 
county border data,
the borders in Tiger are much better.

richard