it is above golden rod city go where the bug catching contests is then go left
it is near golden road you go stright and turn left
The Pokethlon (or rather, the Pokethlon Dome) is just to the left of the National Park. If you're in Goldenrod City, go north, fight off the trainers that are lining the path on that Route, and then when you enter the building, take a left and go out of the left exit. Then keep walking until you hit the Pokethlon Dome.
At the Pokethlon Dome or at the Bug Catching Contest
Go north to where the National Park and the Pokethlon Dome are.
Use rare candies you could get them at the pokethlon dome using points
yes you can
you get out of the park and continue your game
buy it at the pokeathelon dome
Route 14 -PokeGear Call (Get someone's number on that route, and they will eventually call you saying they have something for you.), Pokethlon Dome (3,000 points), Bug Catching Contest.
have the dome fossil restored at the pewter museum of science
Ruins of Alph by using Rock Smash on the Rock Smash-able rocks. I believe the Dome Fossil is only found in Soulsilver, I could be wrong.
Above Goldenrod city,walk into the room where thay tell you about the bug contests and go through the far left door. et