Nooby needs help with Google earth numbers

do any members know what these numbers o google earth mean? Are they hystotic mine site or occurnces ? Any help is greatly appreciated

By the looks of the number and checking it out on Google maps in map view, as opposed to Satellite view, it would appear to be the block/subdivision/street number

There are numerous numbers of on the 1 block though wich is confusing, and where all these numbers are seem to have tailings everywhere. After a little research they used to mine arsenic all around there. Heaps of smooth river gravels and quartz to, di you think it would be worth a look ?