This cache is near Pig Green. And you may need a stick to poke it out!
A 'Pig in a Poke' is an Old English saying dating back at least the 16th century, referring to a purchase or deal made without inspecting the item first, often resulting in receiving something worthless or of lesser value. Originating in medieval England, a "poke" (bag) would supposedly contain a piglet, but dishonest sellers might substitute it with a worthless cat.
The phrase was commonly used as "don't buy a pig in a poke" to warn against risky investments, buying used items without inspection, or accepting contracts blindly. It is related to the phrase 'let the cat out of the bag,' which originates from the same scam, where exposing the truth (opening the bag) reveals the deception.