Yes, you should read more about the Yukon Gold rush. It was in late 1800's when all the Americans rushed up to the Yukon in Canada to look in the rivers for Gold.
No.
No.
The answer to your question is NO. None of the one dollar coins that are "gold colored" contain any gold, they're made of brass. Neither coin is rare by any means.
Any local bank should do it for you, but you will "lose" some money in the process - the Canadian dollar is not worth as much as the American dollar.
Generally, they're still worth one dollar in Canada, and can be exchanged at face value in any Canadian bank.
None of the one dollar coins that are "Golden Colored" contain any gold - they're made of brass.
in 1987 as best I can remember it was around a dollar a gallon.
Sorry the US never struck any half dollar gold coins of any date
The U.S. Mint did not issue any gold Susan B. Anthony dollar coins.
The U.S. Mint did not produce any gold dollar coins until 1849.
None of the one dollar coins that are "Golden Colored" contain any gold - they're made of brass. A 2007 Washington dollar is just 'a dollar' so spend it.
At the time of this writing, the 30th of May 2013, The Australian dollar and the Canadian dollar are equal. The exchange rate here is 1 to 1. This may fluctuate at any time however.
That depends on the date, as Queen Elizabeth II has been on every Canadian dollar since 1953. Any dollars through 1967 are silver and are currently worth at least $15 or so. Then 1968-86, they were pure nickel, and are still worth a dollar (maybe $2 in better condition). In 1987, it switched to the small golden dollar, nicknamed the "loonie." Those are all worth one dollar each (except for the 1997, which was only sold in mint sets and has a small premium).