Historical clue formulations

• Much of northern Arkansas — 2025-05-02
• Arrange? — 2025-02-06
• Region encompassing most of the Arkansas/Missouri border — 2023-01-01
• Range that's home to the Mark Twain National Forest — 2018-01-14
• Range that's home to Ha Ha Tonka State Park — 2017-03-31
• Range that's home to the Mark Twain National Forest — 2016-07-17
• Missouri mountains — 2015-03-23
• Springfield Plateau area — 2014-05-18
• Range near Wal-Mart's headquarters — 2010-08-28
• Buffalo National River locale — 2009-11-20
• Location of the Boston Mountains and Buffalo River — 2009-09-26
• Missouri vacation destination — 2001-07-08
• Site of Mark Twain National Forest — 1996-08-11
• Popular tourist area, with "the" — 1996-04-12