A couple of thoughts that may or may not apply.
First, if a dam is needed on the property line, the width of the dam will take up a lot more area than one imagines. You have to keep the whole project on your side of the property line, and if a dam is required there it may take up a good portion of the part you are imagining to be the pond area. So the pond might end up being a lot smaller than imagined. If it is a completely dug pond (without a dam) then this is a moot point, but an area for the spoils (excavated dirt) has to be allocated.
If it is a watershed supplied water for the pond, is there enough watershed to keep the pond full adequately throughout the year? Being absentee most of the time, I'm assuming you are not planning on a well being drilled to keep the pond full. Will the desired location catch enough runoff water to keep it full? If you put a pond at the top of a hill, it does not get much runoff water.
Ok, three thoughts. The area just to the north and west a little - looks like a wash or ravine? This might be a better selection for water runoff to fill a pond? Don't know, just asking.
Wow that is a lot to think about.
I'm more concerned with a damb breach on that side and it floods the neighbor's property.
Since BP installed a gas pad on the property they dug a well to service it. I could use that.
The problem is the overflow/spillway direction would have me pushing the water down on the gas pad. I don't want to upset their operation.
I'm going to give Otto a call and see if he can make a field trip to Marshall. If not, I'm headed up there tomorrow and will walk the land again and make some videos of potential pond location sites.