In pokemon D/P where do you find a vulpix?

You can't find Vulpix in D/P, but if you really want you should trade from R/S/E, but if you really want to get Vulpix in D/P, find Vulpix in route 209

u have to have the national pokedex and insert the pokemon leafgreen into the slot of ur ds

u need pokemon R/E/S/LG OR FR