I hunt for placer gold. I am a member of a treasure hunting club in Apache Junction, Arizona and we go out to gold claims that we own and spend a day socializing and working the placers. It is a lot of work but fun also if you happen to find an area where some gold dust has collected. Frequently you find nothing, but other times it is exciting when you are finding a bit of the brilliant yellow that is gold.
Once I found a silver ring with my metal detector. The stone was gone but I was excited. I have also found old civil war era military jacket and pants buttons near old sites of forts.