The map in the front of the book shows that the badger and bell shaped rocks come before the gorge. But in the text, the travelers cross the gorge before they reach the badger and bell rocks. The map in the book is wrong...
I noticed that too. When I read Mattimeo, which is supposed to be the same route the 5 travelers in Loamhedge used, there is a completely different order that the landmark obstacles come up in. There is no river after the forest. The only source of water on the ledge is the pond after the gorge, which isn't even in Loamhedge...