Historical clue formulations

• Pinnacles — 2021-07-19
• Tops — 2016-03-17
• Tips — 2013-09-15
• Peaks — 2012-10-08
• High points — 2012-03-13
• Uppermost points — 2010-10-18
• Climbers' goals — 2010-08-08
• Climbers' goals — 2006-12-09
• High points — 2004-09-17
• Mountaintops — 2004-06-24
• High points — 1999-04-15
• Peaks — 1998-11-23