The last week was amazing: 100-140 feet per day of beautiful rhyolite core in all varieties, from altered rhyolite through glassy and crystalline welded tuffs. It cuts like soft butter. But alas, it was not to last: late Friday night hydraulic problems on the CS4002 forced a complete shutdown till a technician can come and troubleshoot the system on Monday. We are using the downtime to get caught up on logging and data base entries. Current depth 3091 feet (942 m). We have welcomed Lisa Morgan onto the science team.. She is well versed in rhyolites from Yellowstone, so her input is very welcomed.