Today the glue had dried on my first step towards a model of Breed's Hill.
I had glued an old 2'x2' terrain tile and two 1' square tiles to a piece of 3'x2' hardboard roughly trimmed into a rounded shape:
Using an old bread knife I then cut the polystyrene to match th shape of the hardboard:
Then I marked out where the fortification would be (blue) and the ditch (purple):
Then more work with the bread knife to shape the contours of the hill. I used a box cutter and a screwdriver to carve out the ditches in front of the fortifications:
I think that is enough for today!