once you get national pokedex you will get a poke radar. Then go to valley wind works and use you poke radar a couple times and find one (get a high Lv Pokemon and use false swipe then use a pokeball)
vally windworks with pokeradar
Go to Valley Windworks and use the Pokeradar.
The pokemon is Mareep. Find it in the grass near Valley Windworks.
i don't no i think at route 33
No, ampharos is the final stage of evolution in the mareep family.
You need to use the pokeradar near sunyshore city. I have an Ampharos on Pokemon platinum! And, I made a Mareep egg!
the Pokemon is rotom to get him you need to trade it over from diamond pearl or platinum
Mareep is an Electric type pokemon.
TM24 is the only way to teach Mareep thunderbolt. In Pokemon Diamond, Pearl and Platinum, thunderbolt can be obtained at the house next to Veilstone Game Corner for 10,000 coins
In Pokémon Platinum, Mareep can be found using the PokéRadar in the grass patches of the Valley Windworks.
Mareep evolves into a Flaaffy, then an Ampharos.
Go to Valley Windworks,use your Poke Radar in the tall grass.It may take a while but it is worthwhile.