Crispy said:Oops, thought I fixed that one.
Ah yes, it's in the gif version, which is better.
http://www.internsnetwork.org.uk/users/tom/glastomap.gif
Not sure about the black circles, but there's at least one in every campsite. Fire station maybe? Looks like there was a key on the original map (you can just see the corner in the bottom right. Wiskers, could you scan the key in pretty please?
They are the Campsite Steward Posts. Dervish's enlarged copy now has a full key.