campground icons - what do they mean?

Dump station available.

Spongebob squarepants area??? :h

Icons in what document? Ohio state park guide?

There is no standard, for example similar symbols in Texas and Kansas state park guides have different meanings, and these mean something different from what is on USACE campground maps.Usually the document will have a key. Without the key, we can only guess. Without the symbol?

I`m guessing what your describing means "Big Rig" friendly. over 35 feet.

MOre than likely it is for a dump station and showing a TT with a pipe going down.

Moved from Forum Technical Support

Is this the one you are talking about?



I would guess that it means that they are able to handle "Big Rigs", or at least that is what I got when I checked the Good Sam site.
How big is "Big Rig"? Not sure, but I'd guess it's over 40'.

Without a picture/image of some kind it's hard to guess what the one you're talking about means.

"Square with a vertical line" isn't ringing a bell, at least with me...is this something you see in Public parks/campgrounds, or is it more likely to be seen in private RV parks?