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 13. Removal of twentieth century reservoir cleanout. 12 Oct. 2016.
Figure 7. Reservoir R31 just after the cleanout began, 11 Oct. 2016.
Figure 11. Reservoir R19 with soil heaps; looking to southwest. 11 Oct 2016.
Figure 23. The cleaned portion of exposed floor. Proper care of this water source will require periodic cleaning of the entire reservoir floor, at times when the entire water supply is used up. 27 October, 2016.
Figure 20. Reservoir 13 with water remaining to an average depth of one meter. In the foreground one can see the shelf of exposed bedrock floor and the algae bloom in the shallower water. 26 October 2016.
Figure 15. In the final week, a new crew began the clearing of stones from the Reservoir R19 itself. 1 Nov. 2016.
Figure 18. The undisturbed sediment area in Reservoir R16. 29 October, 2016.
Figure 8. Crew removing building blocks from Reservoir R31. 20 October 2016.
