I detected a small park a block from home. It's not well used......no play equipment or soccer fields. It only has a couple of picnic tables and park benches. You just never know what or where you can find good targets. It's probably gold plated. As with most rings, they create a lot of eddies returning to the search-coil and cause the detector to get a strong signal. The ID numbers were 82 to 86 probably due to it's shape. Yesterday, the river dropped nicely so I could dig up some gravel bars along it's shore. Got to love this retirement life!