Definition. Night leg cramps, also called nocturnal leg cramps, are painful, involuntary spasms, aching or contractions of muscles in your legs. In most cases, night leg cramps involve your calf muscles, but muscles in your feet or thighs may cramp as well.1  Causes.ight leg cramps, also called nocturnal leg cramps, are painful, involuntary spasms, aching or contractions of muscles in your legs.
Tlingit and neighboring peoples. The greatest territory historically occupied by the Tlingit extended from the Portland Canal along the present border between Alaska and British Columbia, north to the coast just southeast of the Copper River delta in Alaska.
The Yupiit are the most numerous of the various Alaska Native groups and speak the Central Alaskan Yup'ik language, a member of the Eskimo-Aleut family of languages. As of the 2000 U.S. Census, the Yupiit population in the United States numbered over 24,000, of whom over 22,000 lived in Alaska.