Sept 17 operations

Changed bit to wide slot bit last used at the end of the Ft. Pierre hole.  Went in hole at 0900 hrs. 

Measured penetration rate of 14 min/ft for core 22.  Core 23 had an RPM of 1900 and 340 psi down pressure. 

pulled rods at 1230 hrs and ran in with diamond-toothed bit. 

Core 24 13 min/ft with down pressure of 250 psi (measured at 1315:25 - 1328:20)

20 min/ft with down pressue of 400 psi  (measured at 1328:30 - 1348:30)

Core 25   no recovery at 1640 hrs but went back in and speared core that had fallen out plus appears to have recovered some core from the preceding core run because had more core than drilled during current run.  Core quality was very good.