I spoke to Mark this morning just before he was going to sleep for the night.

They reached the "Interim Camp" in the middle of the night. Mark said, "it was a great trek that took about 5 hours, they trekked along side their Yak's that carried in total about 3 1/2 TONS of equipment for them!" Those animals are truly invaluable to the climbers.  

In reaching this new camp they gained another 1,700 ft! They plan to stay at the Interim Camp for the next two nights and do daily treks up the mountain in order to acclimate. In 2 days, if everyone has acclimated,  they will make the push up to Advanced Base Camp. Interim Camp is at about 16,700ft, they are all starting to move a lot slower to get where they need to go, rest will help out tremendously.

Till tomorrow, good night climbers, sleep well...