Do the Calligaster in Texas tend to have a specific look, or are they very diverse populations in the Lone star State?

Here's a fairly typical young adult from Grimes county, Texas (about 100 miles NE of Houston).

I have seen dozens of snakes from the west side of Houston that looked the same.
Adults are a little less contrasty, but they don't turn brown like the ones further east and north.

Also, what localities have some of the largest Prairie Kings?

I have seen calligaster up to around 40 inches in southeastern Texas. I think they are somewhat smaller here than in the eastern parts of their range.

-----
Chris Harrison
San Antonio, Texas