Historical clue formulations

• French department that borders Switzerland — 2020-07-30
• River to the Rhône — 2012-05-20
• French river or department — 2011-06-05
• River to the Rhône — 2010-08-08
• Bourg's department — 2007-12-30
• Department of eastern France — 2004-04-18
• Department of eastern France — 2004-04-11
• Department of Bourg, France — 2003-04-20
• Department in France — 1996-07-10
• Rhone tributary — 1993-12-26