American English dialect survey

http://www.hcs.harvard.edu/~golder/dialect/maps.php

Interesting stuff.  There are several dialectical variants which I had no idea
even existed - like pronouncing the final /s/ in words like <anniversary>,
<grocery>, <nursery> as [S], or the <qu> in <quarter> as a simple /k/.

It's true that some of the questions are poorly-worded and/or
misleading: "How do you pronounce the <g> in <strength>: as [g], [k], or
silent?"  Well, er, I say /strENT/- does that mean that the <g> is silent?  I
would think not, because otherwise it would be /strEnT/, which I have
heard; but it's not /strENgT/ or /strENkT/ either . . .

But in any case, it's interesting reading.

-Mark