Compiled 2003 by John Roper. Compiled 2003,2006,2008,2009 by Jeff Howbert, John Roper, Edward Earl, Andy Martin, John Kirk, and Eric Noel.
Reviewed 2006 by Andy Martin and 2008 by John Kirk. or Rhinoclimbs. ¹ Oregon Butte and a 6360+ area ½ mile NW of Diamond Pk rival for the same prominence. Whichever is higher takes the prominence of the Blue Mtns in SE WA and is its county prom champ. The other loses its county prominence status to another peak in the same county.