STARFIRE wrote:I was thinking...first paint the circle, then dig holes about one foot apart completely around the circle, deep enough to hold bricks. Paint the bricks for visibility and embed them in the ground low enough so you won't trip over them. The outer edge of the brick would be ten meters all the way around.
Isn't the circumference of a 10 M putting circle over 200' around? I mean, 10 M is just short of 33', so the circle will have a diameter of around 65'. 65' X pi is 204'. At those numbers you would need over 1,800 bricks to do 9 putting circles.

It would be somewhat less since the brick would take up 2" so you might be able to get away with 170ish bricks/circle. Thats still what, 1,530 bricks for 9 holes?
Even if you put a brick every 10' on the circles, you would need just short of 200 bricks. Sounds like a lot of work. They will have to be maintained as some will push up, some will sink down, some will have grass creep over them, etc. They will have to be painted every year. Sounds like even more work. Cool idea, but a lot of work.