Historical clue formulations

• Animal that lends its name to a Tex-Mex order — 2025-04-05
• Donkey used as a pack animal — 2022-09-26
• Provider of a canyon trail ride — 2021-08-11
• Pack animal — 2020-06-09
• Beast of burden — 2018-03-19
• Grand Canyon pack animal — 2015-03-16
• Small donkey — 2013-04-09
• Pack animal — 2008-08-01
• Grand Canyon transport — 2007-09-03
• Grand Canyon beast — 2007-05-02
• Pack carrier — 2004-10-14
• Grand Canyon transport — 2004-06-28
• Big-eared animal — 2002-08-18
• Pack animal — 1999-04-27
• Grand Canyon transport — 1997-02-24
• Pack animal — 1995-12-05
• Mountain transport — 1995-09-17
• Beast of burden — 1994-08-16
• Grand Canyon transportation — 1994-05-01