While working on some of the new 6-man Gray Mountain instances, Louey discovered a Japanese LOTRO Wiki. If you right click the page and then click "Translate," the automated English translation is not bad at all.
The Wiki's description of Kidzul-Kalah was the clearest we could find and really helped us a lot. I'm definitely going to keep it handy for future raids!
The link below will bring you right to the list of instances. Click the name of the instance you want to read about... and if your Japanese is rusty just right click and choose "Translate"!