Great report Jeff. Your oldest (w/ no trail name yet) "he" dosent look like the same kid I saw at Hot Springs last year.
I believe the snake was a Garter Snake & I can't be sure from the picture but the salamander looked like a Red Spotted Newt in the "TERRESTRIAL RED EFT STAGE".
Several times I've seen the red crawfish, but haven't found out yet why they were red... maybe a phase in their life or maybe a type of crawfish???
They are pretty that way though.
I once took some boys camping & we caught crawdads & cooked them. Pretty good.
don`t leave the CREATOR out of the creation!