I continued past the second set of paired stones and make my way to the glacial erratic at the lip of a small hill summit which I showed earlier during my evaluation of wall types found on the site. The azimuth between the second set of paired stones and the boulder I advanced to is 141 degrees.

Date Time Alt Azimuth SD Days Past New
2018/03/26 19:00:00 61 41 23 142 52 54 16 25.9 9.5
2018/05/25 19:00:00 35 17 39 140 06 04 15 34.3 10.5
2018/06/24 19:00:00 23 52 47 141 46 06 15 07.1 11.2
2018/07/24 19:00:00 16 44 15 140 12 44 14 50.2 11.9
2018/08/22 19:00:00 19 40 19 145 53 35 14 48.3 11.6
2018/10/20 19:00:00 31 39 10 145 09 57 15 07.3 11.8
2018/12/18 19:00:00 51 53 04 142 58 50 15 51.5 11.7

Data suggests that "glacial" stone placed on small hill was more likely used to monitor moon's movement in relation to this stone specifically during the summer months. We see that as summer moves forward, the moon's initial horizontal azimuth will appear closer to the horizon scape where the stone is located. The closest it gets is on 2018/07/24, where altitude is16 44 15. By the end of next month, it quickly starts moving up again, hinting the end of summer. Brian Ghilliotti
Sources:
http://eco.mtk.nao.ac.jp/cgi-bin/koyomi/cande/horizontal_en.cgi

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