EDIT 10/07/10: YES, THERE ARE GOING TO BE GYMS. HERE WE ARE:

Maple Town :: Has no gym (Starting town)
Sendura Town :: Bug-Type Gym (Scyther, Beedrill, Heracross?)
Ractal City :: Ice-Type Gym (Walrein, Weavile, Lapras?)
Rainier City :: Electric-Type Gym (Raichu... Can't think of any other Electric types. xD)
Banteau Town :: Water-Type Gym (Lapras, Seaking, Dragonair even?)
Dragonsbane Village :: Dragon-Type Gym (Dragonite, Salamence, Monozu (new dragon-dark pokemon) line?)
~~~~~
Yes, my Kelto friends, this is the map. (: I added rivers like you all wanted, and... Yeah, that forest in the beginning has no name. :P Anyway, here are all the cities if you can't read my messy handwriting:

Maple Town (Starting town; near mountains)
Sendura Town (Right after the forest)
Ractal City (Near the ocean, a bit like Goldenrod)
Rainier City (Main "big city", only city that has a river that connects directly to Dragonsbane)
Banteau Town ("Banteau" is "boat" in French. It's the place where you can take the boat; most noticeably to Dragonsbane.)
Dragonsbane Village (This has a place like the Dragon's Den in the middle. It's on an island, and provides many items you can get nowhere else.)

That's all. (: Let's get on with the layout/roleplay!
And so I don't loose it...