Afarensis has a wide-ranging series of posts discussing the availability of the Kennewick skeleton for scientists to study. (The link is to the 3rd of a promised 4 posts.) The Kennewick remains, dated at 9000 years old, were found along the Columbia River in eastern Washington. The remains have been locked up in legal wranglings for some time but will be available this summer.
There are some indications that Kennewick's skull was of Caucasian rather than Mongolian form. Please see afarensis again for everything that can be learned from a single skeleton.