Regarding the Adventure Lab caches ArkGeo has in Hot Springs, I did those a couple of days ago (on Wednesday, November 13) and noted a problem with a couple of them. Two of the information signs needed for answers were missing - the one at Arlington Hotel and the one at Fogel Field.
But there is a way to get the answers. At each one, on the post where the signs used to be, is a QR code for an audible tour stop, which provides the necessary information if one scans the code and then plays the audio that opens. If possible, the Lab Cache instructions for these stops should be edited to tell those visiting the Labs to do this to get the required information.
"There are not enough Indians in the world to defeat the Seventh Cavalry." -- George Armstrong Custer