Driving a long way takes time but the rewards were worth it. Sometime when it's sanded in you have to get out of Dodge & try else where. This one came up in the surf & was difficult getting out with a small shovel. Surprised to see it when it finally popped up. Marked 10K inside with four additional stamps worn down beyond recognition. Difficult to clean with all the nooks & cranny's, still needs work.
Keep up the digging,