Core Sample Drilling - March 2, 2018
https://www.codot.gov/programs/remotetower/Images/Images_TheLatest/CoreSamples2/view
https://www.codot.gov/programs/remotetower/Images/Images_TheLatest/CoreSamples2/@@download/image/CoreSamples_030218_2.jpg
Core Sample Drilling - March 2, 2018