Monolithic pier was poured today using a single pour...thankfully the form-work held and didn't lift.
I marked true south with a star picket and red flag at 50m to align the bolt pattern on. I positioned the stake at night by standing behind the pier and sighting on the SCP (whose location I know very accurately) using binoculars and dropping them down over and over a few times to determine exactly where to place the stake and thus quite accurately position the bolt pattern
The elevated deck is being built around the pier on Wednesday and hopefully I can move the Sirius Observatory on the weekend and get the site shed delivered
Mike