lake acuity
The first time you see Cyrus is at Lake Verity
You don't
Pokemon #146 is Uxie, and can be found in the Acuity Cavern in the middle of Lake Acuity. In Platinum, I believe you can have another chance to catch it if you don't catch it the first time.
There are two earthquakes in Pokemon Platinum. The first one is in Pastoria City, but you then don't have to fight him. The second one is at Lake Valor (you're in Canalave City then). Commander Saturn is in the cave at Lake Valor
by snowpoint city.
it's in lake verity
fire-type pokemon.
Lake Valor is the big lake above Pastoria city.
You will need to insert Pokemon Emerald then go to Route 221 or Lake Acuity/Verity (Lake Verity in Platinum only) to find it in Pokemon Diamond, Pearl, or Platinum.
There isn't a Lake of Rage in Pokemon Platinum. But in the Resort Area, there is a place similar. It is that big Lake in the middle. Down part is, only Magikarp lv. 1-100 can be found there.
If you have Pokemon Emerald in your GBA Slot (this also works for Pokemon Pearl and Diamond) Pokemon Platinum- Route 217, Lake Acuity Pokemon Diamond & Pearl- Route 217, Acuity Lakefront, Lake Acuity
its in a lake in mt.cornet, its where all the fog is.