Figure 10. Twentieth Century surface supply channel collected runoff from open field to north of Reservoir R31. Oct 10, 2016.
Figure 22. Crew members begin cleaning of sediment and algae. 26 October, 2016
Figure 11. Reservoir R19 with soil heaps; looking to southwest. 11 Oct 2016.
Figure 14. Leveled area looking south-southwest across Reservoir R19. 25 October 2016.
Figure 18. The undisturbed sediment area in Reservoir R16. 29 October, 2016.
Figure 17. Close up view of quarry marks. Below the 10-cm scale stick the groove in which wood wedges soaked with water were jammed is clearly visible. Because of the fine-grained igneous texture, the basalt blocks split of smoothly, similar to a flint sliver knapped from a core. 1 November, 2016.
Figure 25. Team 2. The Group mostly responsible for clearing the deep stone layer from Quarry-Reservoir R19. 2 November, 2016.
Figure 7. Reservoir R31 just after the cleanout began, 11 Oct. 2016.
