First you go to Cerulean City in Kanto, and there should be a route north of it. If you follow it and defeat all six of the trainers along it near the end of the game, you should be able to find and battle Suicune. Hope this helps! :)
route 44
You can only catch Vulpix in SoulSilver, not in HeartGold. You can catch it on route 36 and route 37.
I don't believe there is an orange apricorn.
In Pokemon Soulsilver you can face Raikou at Level 40, Entei at Level 40, and Suicine at level 35. To catch Suicine youll have to chase him. Hell first be in Cianwood City, Then Route 39, then Vermilion City, then Route 14, then Route 25. Youll encounter him on Route 25 at Level 35.
Diamond/Pearl/Platinum: Eterna Forest Heartgold/Soulsilver: Route 25 (during a swarm)
Suicune is on Route 25.
Route 25, near Bills house.
route 25
in bills house on route 25
Route 25 in the Kanto region.
She's at the end of route 25
i think she is on route 25
at the end of the cerulean cape (route 25)
It is in Kanto North of Cerulean City. There is a golden bridge and u go up it to get to route 25.
At the end of route 25, north of Cerulean City.
Route 30.
first in burned tower than in Cianwood than route 42 route 14 and finally route 25 where able to catch it