![](http://d10j3mvrs1suex.cloudfront.net/s:bzglfiles/u/460149/775d67d7c57dc0e268efb5f6d2b7d4f6c7519f1f/original/20210511-191542.jpg/!!/meta:eyJzcmNCdWNrZXQiOiJiemdsZmlsZXMifQ==)
The footing was poured first, followed by the foundation a week later.
![](http://d10j3mvrs1suex.cloudfront.net/s:bzglfiles/u/460149/5cc756c95015af0415b1e04b73e2102b7c8637bd/original/20210522-191547.jpg/!!/meta:eyJzcmNCdWNrZXQiOiJiemdsZmlsZXMifQ==)
It is 8' high and 8 inches thick.
![](http://d10j3mvrs1suex.cloudfront.net/s:bzglfiles/u/460149/2e294e1309126096583b4e1dfb7963a2b4a1c140/original/20210529-175340.jpg/!!/meta:eyJzcmNCdWNrZXQiOiJiemdsZmlsZXMifQ==)
5 inches of styrofoam with a vapor barrier were installed to keep the frost out, establishing the heat sink.
![](http://d10j3mvrs1suex.cloudfront.net/s:bzglfiles/u/460149/cc6f15bf295e882666287071a90e44159c5d1901/original/20210604-143144.jpg/!!/meta:eyJzcmNCdWNrZXQiOiJiemdsZmlsZXMifQ==)
The soil is heavily rocky. The boulder to the North (behind the greenhouse) was dug out of the foundation hole.