America, North, History: Figure 1. 1811 sketch map of Mammoth Cave, Kentucky, as reproduced in the 1853 edition of Notes on the State of Virginia by Thomas Jefferson. William R.Halliday Collection.

DOI link for America, North, History: Figure 1. 1811 sketch map of Mammoth Cave, Kentucky, as reproduced in the 1853 edition of Notes on the State of Virginia by Thomas Jefferson. William R.Halliday Collection.

America, North, History: Figure 1. 1811 sketch map of Mammoth Cave, Kentucky, as reproduced in the 1853 edition of Notes on the State of Virginia by Thomas Jefferson. William R.Halliday Collection.