Ann Curry, Today show anchor, is reporting from Arrow Glacier camp (16,000 ft). She stated that she has climbed from 13,000 to 16,000 ft. today in 8 hours, which suggests that she left from Barranco camp (13,800 ft). The distance between Barranco to Arrow Glacier is about 3 miles.
Curry is feeling the effects of altitude and will stay at this camp for an extra day to acclimatize. From what I can gather from her videos and journal entries, she began her Machame route climb on November 15th, making today her fourth day on the mountain. Her summit attempt should occur on November 20th (day six) or 21st (day seven), depending on whether she spends a night at Crater Camp at all, and if so, whether it is before or after summiting. The next segment, the climb up the Western Breach to Crater Camp (18,500 ft), should prove to be the most physically challenging of her journey.
Videos of Curry’s climb are linked below: