2. How aggressive these are Few people knew exactly where it came from, and fewer still were permitted access. The location is private, house and past owners were understandably protective of their treasure. Around 40 years ago a new, local boy named Martin Kramer (That's Martin inside photo, characteristically swinging a pick. Also, three collectors in the Monterey / Carmel area.) was hill climbing near his Morgan Hill home, South of San Jose, California and noticed some pretty, red rocks. Back then, the jasper could be collected as float material. When which had all been removed rockhounds attacked outcrops with gads, prybars, and sledges searching for jasper inside host rock. Finally, exploratory holes were dug until two reliable veins were found just feet derived from one of another. For years this site has supplied gem rough for lapidaries throughout the nation and beyond. If you notice a newly released abundance of poppy jasper on the market (I have seen bowling ball-sized boulders with a few shows) this is due to the site was opened to fee-digging the past year or so. Knowing they would soon sell their home, pet owners took benefit from any additional income stream.