Historical clue formulations

• Range units: Abbr. — 2017-10-19
• Whitney and Shasta, for two: Abbr. — 2017-10-03
• Appalachians, e.g.: Abbr. — 2014-10-01
• Range parts: Abbr. — 2014-03-28
• Cascades, e.g.: Abbr. — 2013-10-02
• Himalayas, e.g.: Abbr. — 2011-11-09
• Range parts: Abbr. — 2011-09-29
• The Dolomites, e.g.: Abbr. — 2011-07-27
• Chain "links": Abbr. — 2011-06-09
• Where chamois and snow leopards live: Abbr. — 2011-04-14
• Range units: Abbr. — 2009-07-28
• Rockies, e.g.: Abbr. — 2009-02-04
• Chain links?: Abbr. — 2009-01-23
• Much of Colo. — 2007-01-07
• Range: Abbr. — 2006-09-17
• People may take a pass on them: Abbr. — 2006-02-18
• Range: Abbr. — 2004-07-23
• Range units: Abbr. — 2003-11-26
• Calif.'s Sierra Nevadas, e.g. — 2003-04-13
• Atlases, e.g.: Abbr. — 2003-01-16
• Range: Abbr. — 2000-04-17
• Range: Abbr. — 1999-03-06