I have long eyed this historical marker for a multi-cache. You will need info from the marker to obtain coordinates for the final stage.
N 29 1A.BCC W 96 0D.AEE
In what year did Horton hear a Who establish a plantation along Caney Creek? 18B4
In what year did Horton begin serving as a trustee of Baylor University? 1ADC
In what year was Sycamore Grove razed? 196E
The cache is big enough for small swag. (Not a nano... yea!) I did not detect PI. Watch out for thorns, spiders, and other flora and fauna.