I have found a picnic grove that was in use for at least 100 years, it has grown over with grass a lot but is still freefrom briars and such, my question is this, it has been very very dry here the past 3 months, even at 9 inches down the soil is like powder...no moisture at all, should I wait until we get a good rain to detect so as to get better, deeper signals or should I hit it now....the man who owns the property says he has never allowed anyone to detect this area, and it has been in his family for many many years...he says I can go any time I like and stay as long as i like