Over a month ago I had posted that there was a drill rig mobilized on the mesa, but I was not sure whether it was for geotechnical analysis or to make holes for blasting. Soon after that post 2 more rigs showed up and I discovered that both answers were correct. They were up there 7 days a week drilling holes every 5 feet. On Friday they blasted. Oh, how I would have loved to have seen that! It must have been a hell of an explosion because dirt and rock had been pushed up 10 feet or more. Judging from all of the holes up there, there will be many more blasts to come.
I also noted last week that an area had been cleared and they are now using it to store the blasted rock. I wouldn't be surprised if they soon brought in a crusher to start turning it into aggregate. The trenching machine has been making very slow progress. It started off like gangbusters but now has been sitting in the same spot for days. I've enjoyed looking into the trench to study the soil profile and the bedrock contact. I'd love to jump in and get a closer look, but unsupported trenches are things you don't want to mess around with.
The rock pile begins.
Trenching machine with rock pile in the background.
After the blast