The Pokemon I have found on Hollowbrook Town so far are all between level 3 and level 6.
I have seen:
Rattata
Caterpie
Spearow
Sandslash
In water map.
You can get dialga in cluod map
You can find it in Crater anywhere on the map(s), but it's really hard to find.
you can find it on water map but its extremely rare
type in "pokemon crater" on google search and click the first link.
You need to buy a cloud map for 20 credits for Rayquaza
when you beet the elite four you find themon the rock map
you will find it in the ground map email me if you want more to harrybush@bigpond.com
When trading pokemon in a pokemon crater you should make sure that both partys are on the same terms. go to the same map as each other, only one person. then request to trade .
In first place Pokemon Crater does not exist anymore and the way you can get legendaries is by beating every gym leader and the elite four
Pokemon indigo and Pokemon crater
Pokemon crater no longer exists