Ketchikan, Alaska - Ketchikan Indian Community Tribal Council is proclaiming April 1-7, 2012 Heritage Language Awareness Week. It is estimated that only 175 Native languages remain in the United States, three of which are languages indigenous to the Ketchikan area: Tlingit, Haida, and Tsimshian also known as Lingít, Xaad Kíl, and Shmalgyax.