Re: [ECOLOG-L] Metal Detector

[David Inouye]

I use a metal detector to find tags for plants in a demography 
study.  The tags are cut from aluminum beverage cans, about 3x6cm, 
held in the ground with a 16d nail (about 8 cm long).  Pocket gophers 
sometimes bury the tags, and I can detect them down to a depth of 
about 12-15cm.  My metal detector is about 35 years old though, so 
perhaps newer ones could find a metal rod buried (horizontal would be 
best I think) deeper than that.

David Inouye