To follow-up on the report about the closing of Sierra's Yosemite Entertainment Division (story), Sierra Online founder Ken Williams made a post to the Black Monday Forum with an open letter to former Sierra employees with an explanation of the events that lead to the closing of the Yosemite offices, going into detail about the road Sierra has traveled to get where they are today. Thanks GA-Source. As the letter says, "There is really nothing good that can be said. This is a sad ending to Sierra's twenty-year operating history in Oakhurst, which at one time, represented over 550 Oakhurst-based employees."