Actually, iron rusts away so quickly that it's hard to recover them from the ground after only a millennium or two. Bronze tends to fare much better in that reg

Actually, iron rusts away so quickly that it's hard to recover them from the ground after only a millennium or two. Bronze tends to fare much better in that regard. Wood can last quite a while if it's buried in an environment that inhibits microbial degradation, such as a highly acidic bog, where iron doesn't stand a chance.