Tanana Valley

During the winter months, the air is prone to stratification due to temperature inversions, leading to thick fogs.

At the same time, a katabatic wind called the "Tanana Valley Jet" can form, blowing from the southeast to the northwest.

Other communities include: According to James Q. Jacobs, Tanana Valley has the earliest evidence of human occupation in Alaska.

At the Broken Mammoth, Swan Point, Mead, and Healy Lake, Alaska sites, the oldest dates range between 12,060 BP and 11,410.

"[5][6] More recently, Tanana Valley sites have been dated to pre-Clovis period, or 13,000–14,000 cal yr BP.

A portion of the Tanana Valley, as seen from the Parks Monument overlook of the George Parks Highway east of Ester .