is Sand Lake – ) area. Neighbors: Delta-Goodpaster band (west), Hän people (north), Ahtna people (south), Mansfeld-Kechumstuk band (west), Healy River-Joseph band (east). Mansfeld-Kechumstuk band — inhabiting nowadays Tanacross () and Dot Lake (), formerly Ketchumsuk (), Mosquito Fork, Lake Mansfield (), Mansfield Hill (), Old Mansfield Village (), Mansfield Village (), Robertson River (), Tok River (), Tok area. Neighbors: Healy River-Joseph band (west), Hän people (north), Ahtna people (south), Tetlin-Last Tetlin band (east). ('Mansfield area people') ('Ketchumstuck people', lit. 'inland area people'). Upper Tanana The Upper Tanana regional bands: (language: Upper Tanana) Tetlin-Last Tetlin band – formerly inhabiting the Tetlin (), Last Tetlin () and Tetlin Lake area (nowadays Tetlin). Neighbors: Mansfeld-Kechumstuk band (west), Hän people (north), Ahtna people (south), Lower Nabesna band (east). Lower Nabesna band — formerly inhabiting the Northway, Jol, Nabesna Village, Gardiner Creek (Cheejil Niign), Nabesna River (lower), Chisana River (lower) area (nowadays Northway). Neighbors: Tetlin-Last Tetlin band (west), Hän people (north), Ahtna people (south), Scottie Creek band (east). Scottie Creek band — formerly inhabiting the Scottie Creek area (nowadays in Alaska Northway; in Canada Whitehorse, Yukon and Beaver Creek, Yukon, called as White River First Nation). Neighbors: Lower Nabesna band (west), Hän people (north), Ahtna people (south), Northern Tutchone people of Canada (east). Upper Nabesna-Upper Chisana/Upper Chisana-Upper Nabesna band (own name 'among the mountain people') – formerly inhabiting the Nabesna, Nabesna River (upper), Chisana River (upper), Cross Creek (Nach'etay Cheeg), Chisana area (nowadays Northway, Mentasta, Chistochina). Neighbors: Ahtna people (west), other Upper Tanana bands (north), Southern Tutchone people of Canada (east). Prehistory Archaeological sites in Alaska (East Beringia) are where some of the earliest evidence has been found of Paleo-Indians. Alaska Interior or Interior Alaska has been continuously inhabited for the last 14,000 ~ 12,000 years, and evidence of this continuum of human (ancestors of the Athabaskans) activity is preserved within and around Fort Wainwright's training lands. Interior Alaska's icefree status during the last glacial period provided a corridor connecting the Bering Land Bridge and northeastern Asia (West Beringia/Siberia) to North America. The earliest cultural remains in interior Alaska, as on the coast, are chipped stone blade complexes about 10,000 years old, with close relationships to Siberian materials. In February 2008 a proposal connecting Asiatic Yeniseian languages of central Siberia to American Na-Dené languages (Athabaskan–Eyak–Tlingit) into a Dené–Yeniseian family was published and well received by a number of linguists. The homeland of the