https://www.libertystaruranium.com/wp-content/uploads/2017/05/3.-LBSR-Hay-Mountain-rock-samples-Handout-Virtual-Booth.pdf

"Notes Chief Geologist Jim Briscoe: “ I did not expect to see samples like this until around the 300’ level. The fact that these came from an inch to a few inches below the service is encouraging. We almost never see this situation at the surface, especially over a wide area [estimated at about a square mile]. It means the mineral body is exposed at the surface and will increase in grade as more favorable sedimentary layers will be intersected by drilling. We may find what we are looking for at a shallower depth than originally thought, during Liberty Star’s Phase 1 drilling program.”