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 Alaska Range is a relatively narrow, 650-km-long (400 mi) mountain range in the southcentral region of the U.S. state of Alaska, from Lake Clark at its southwest end to the White River in Canada 's Yukon Territory in the southeast.The highest mountain in North America, Denali, is in the Alaska Range.The range is the highest in the world outside of Asia and the Andes.n 1849 Constantin Grewingk applied the name Tschigmit to this mountain range. A map made by the General Land Office in 1869 calls the southwestern part of the Alaska Range the Chigmit Mountains and the northeastern part the Beaver Mountains.