Sunyshore City
By beating the gym leader
In Hearthrome.
Very north of sunyshore city.
The site listed below has a chart for the Pokemon Finneon Diamond and Pearl edition.
sunnyshore city
To the right of Mt. coronet
This location is only in the 4th generation Pokemon games like diamond and pearl.
trade diamond from Pokemon diamond onto Pokemon pearl
You trade Magmar from Pokemon pearl,diamond,or platinum to ether Pokemon pearl,diamond,or platinum.
THE POKEMON THAT ARE NOT FOUND IN DIAMOND AND PEARL ARE:MANAPHY PHIONE
diamond
You can get Palkia in Pearl, otherwise you have to transfer Palkia from Pokemon Pearl to Pokemon Diamond.