In this short video, the stone topples over after a puff of air is applied from an off-camera air can, demonstrating the tolerances to which it is balance-engineered.
-Interpretation of the "engineered to balance precariously" aspect by Ken Johnston, curator of the Boggs collection. The stone can balance and topple over with the slightest movement or vibration or force applied to it as in the example of the air puff here.
-This is a PAC-MAN like anthropomorphic stone engineered to the tipping point. The PAC-MAN stone sculptures have been identified by several North American amatuer archaeologists in addition to Dennis Boggs.
-Prepared tripod base allows forward roll of stone
-Large, sculpted "eye" area on one side
-Open mouth anthropomorphic imagery, as in a shout or laugh. Possible breaching whale imagery.
-Similar to other PAC-MAN like stones identified by Dennis Boggs in the Columbia River Valley.
-Similar to a stone identified as a balanced laughing stone figure or "Bobblehead" from the Boggs collection. The bases on the two sculptures have both been engineered in the same way.
My hypothesis is that this object represents a whale figure which has been given a smiling human quality and that it stands and falls over in a symbolic demonstration of the whale breaching and smacking the water. To make the stone topple, the puff of air from the air can must be applied to the approximate area of the whale figure's "blow hole."
Another Oregon whale sculpture has already been described from the Boggs collection.
"Human head mixed to animal head" is a primary sculpture motif of the Lower and Middle Paleolithic according to Pietro Gaietto: