atna center

The possible reaction is:
Na + At = NaAt

mount bona mount blackburn mount sanford mount chuchill mount wrangwell atna peaks regal mountain mount jarvis mount zanneti

According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern --ATNA. That is, six letter words with 3rd letter A and 4th letter T and 5th letter N and 6th letter A. In alphabetical order, they are:

whatna

Alaska is a U.S. state which has more than 12,000 rivers, and thousands more streams and creeks. According to United States Geological Survey Geographic Names Information System, Alaska has about 9,728 officially-named rivers, creeks, and streams. The most notiable of these is most likely the The Copper River or Ahtna River (Ahtna Athabascan 'Atna) is a 300-mile (480 km)river in south-central Alaska.