Sudden Drop in Rankings

[maghanlinchpinsales]

I manage a site and this past month have noticed some pretty significant drops in rankings for some of our main keywords. I'm trying to understand why and what I can do to correct it. We did do some 301 redirects a little over a month ago so I've been wondering if that has anything to do with it as Google indexes the new URLs. One thing I did notice in Moz is that it is showing that Google is indexing the new URLs but associating them with the wrong keywords in the wrong location. The company services three locations and each location has a service page on the site. But Moz is showing that in Atlanta, the indexed URL is the Nashville one, etc. Is there any way to affect that?

Another thing to note is that organic search traffic is actually up so it doesn't appear to be affecting them which I find a bit strange.

Just looking for any insight as to things I should be looking into to explain the sudden drops.

Thanks!