Abomasnow is located near the almia castle but you don't take the second entrance to get to the castle you take the first entrance in which you should see a snow covered rock and do a target clear onit like tackle 3 and after using the clear target a message will appear saying that the rock is really an Abomansow and there you go you have found Abomansow.

Well you can ask me a Pokemon Ranger Shadows Of Almia's browser because i already has complete browser. Ok, you must fly to Shiver camp and go to Hia Valley where you must surf with Empoleon. Go to another way from way to Alima castle, try to find! You can do it! It's easy, and you must bring a pokemon who have field move 3 tackle to awake Abomasnow.