Originally posted by GunsForBucks:

Altitude is important.

Check chests for new resources. Boss markers typically found in stone towers.

If you find stone golems around there is a high probability of silver being in the area.. for sure at that altitude and above.

Don't be afraid to dig around. They put extra silver veins in since the wishbone will not find all of them. Some may be too close to the surface and considered not buried or hidden so it won't ping the wishbone.

My wishbone pings even if the vain is above ground. Pings so much in themountains anymore i have to remove it and put the belt on lol.
Drake eggs, usually mines right by them as well.