“... A site located in a scenic area, which is unfortunately extremely difficult and time consuming to achieve, is located on the Santa Maria River. Excellent plume agates, which intensely green, dense plumes are sitting in a blue-grey chalcedony matrix  are coming from here.

The two well known prospectors Pat Mahan and "Jake" Jacobitz could make here independently from each other excellent discoveries. The Santa Maria River is not an area for hobby collectors - detailed local knowledge, tenacity, endurance and experience at the prospecting in the wilderness are absolutely necessary..."

Johann Zenz wrote in his article “Achat- und Jaspisfundstellen in Arizona, USA”, Mineralienwelt 01/2012, Bode Publishing House.