Epi,
Lately, due to the "off season" iffy weather, and the timing of when I can grab some time to go, my visits to this place usually are only about 2 hours. I have done things a little differently on the 6 to 8 visits I've made. I have experimented with my Explorer settings due to the heavy trash, and therefore have hit areas over again. I also had about a 5 hour get together with JiminPhilly at this site back in November. I hit the areas he covered with his Quattro again, as his machine was getting quirky. I found the 2nd penny field that he totally missed, or thought it to be trash.
I started with areas of frequent use. Walkways, entry ways, building perimeters, around large trees, pathways, stone walls. I then hit the lawn area in front of house as if I was mowing the lawn (pattern). I have a lot left to sweep. I also hit the barnyard and horse stalls. There are four large fields yet to be swept. Two of them are being used to a small extent for soccer. There are two lower fields with hedgerows downhill from the house. I think I will cover these first. I am trying to do things methodically, but I do mix up and switch areas just to make it less tedious. This place isn't going anywhere, and neither am I, so I'm taking my time. I have this place 1 1/2 miles from my home, and the other historical area (1200 acres) about 5 minutes from me in a different direction. I also have almost 50 public parks within a 15 minute radius, but only 6 are older than 15 years. There is absolutely no shortage of nearby places If I want to just "detect". I really love older areas and the beach, which means I have to drive a bit. Spring is comming, and I will be setting some "quality time" aside.
As an afterthought, I have attached a Google Earth aerial view.
At 8 o'clock from the pin is the barn, at 9 o'clock from the barn would be the garage (covered by trees), then the house. The guest house is at 6 o'clock from the main house. This property is 11 acres in size. As far as how much area I cover, it depends on the amount of digging, and the amount of trash I run into. At this point in time, I've spent about 20 - 25 hours on this site.