Sacagawea Dollars began in 2000 and are still made today, although few circulate. I have had them in change now and then, but rarely - probably some kid spent a birthday present and the store got rid of it as fast as they could. There's probably good reason for the dislike. It's an attractive coin. but people confused them with quarters, in spite of the coloring. There seems to be a curse on dollars: they are either too big or they are confusing. But that's not the whole of it. Although a dollar doesn't buy much today, it still buys enough that (if we are carrying cash at all), we may have a few in our wallets. I just checked my wallet - I have 18 singles. I would NOT want to carry around 18 dollar coins in my pocket. If I got anything near 18 coins of any denomination, I'd throw the excess into our "coin jar" and eventually take it to a coin machine. But the problem with dollar coins is that they have too much value - I wouldn't like throwing ten of them into the coin jar. That's likely the bigger reason dollar coins don't circulate. By the way, should you happen upon a Sacagawea Dollar from 2000 with a "P" mintmark, it could be very worth your while to flip it over to look at the back because there are two varieties that year that do have high value. The lesser is the "Wounded Eagle" variety, which has a distinctive mark on the eagle's breast. I say "lesser", but uncirculated examples are worth at least a few hundred dollars and in more perfect condition, much, much more. The king (queen?) of the Sacagawea's is the so called "Cheerios" coins, so called because many of these were packed in Cheerio's boxes. Nobody knows for sure how many were put into those boxes, but only a few dozen are known to exist. There may be as many as 5,500 (that's how many boxes Cheerio's packed) but of course many were spent (and now sit in vaults somewhere) and who knows how many were simply not noticed and thrown away. Some may have been thrown away out of ignorance - the coin was brand new then and some people may have thought it was just a cheap token with no value at all! There is yet another version that is even more rare. Only one is known, and you aren't likely to find another. It has the coloring and the reverse of the Sacagawea Dollar, but the obverse is that of a State Quarter. I'd guess somebody made that and snuck that out of the mint unofficially. See http://coins.about.com/library/US-c...0-Sacagawea-Native-American-Values-Prices.htm Later, the reverse design changed. Should you happen to find a 2009 to 2011 date, look on the edge - there should be strong edge lettering. If it is weak, partial or missing entirely, that's a more valuable coin. There are several other possible reverses for Sacagawea Dollars - some people collect all of them.