Are you thinking of this one? It's the only specific breed I know of that can look a little like a puma. Scroll down for the puma color. You could have seen a mix that just looked puma ish, and not necessarily a certain breed. <a href="http://websearch.cs.com/gw/boomframe.jsp?query=cat+breeds&page=1&offset=0&result_url=redir%3Fsrc%3Dwebsearch%26requestId%3D362520eaed0db12a%26clickedItemRank%3D1%26userQuery%3Dcat%2Bbreeds%26clickedItemURN%3Dhttp%253A%252F%252Fwww.cfainc.org%252Fbreeds.html%26invocationType%3D-%26fromPage%3DGWYBoom%26amp%3BampTest%3D1&remove_url=http%3A%2F%2Fwww.cfainc.org%2Fbreeds.html" rel="nofollow">http://websearch.cs.com/gw/boomframe.jsp...</a> I think everyone is picturing a long haired cat. Is that what you meant? Mountain lion is the same as cougar and/or puma.
The abysinnian has a sand colored coat that makes it look like it's wild, and has a long tail. But there's no breed of cat specifically with the muzzle markings and darker tail tip that a mountain lion has.