Way too many stone and dirt blocks later, I think I have a decent barrier built up around the future reservoir. I might make a few more adjustments before filling it with water, but the shape is pretty much there. I marked along the inside where the water level will be.
Anyone want to take a final walk around it before the flood comes? This is also your chance to point out any egregious flaws in the landscape that I overlooked while placing all these blocks.
I'll probably fill it some time over the weekend. I want to carve out some underground/underwater passageways for the dam first while it's still dry.