History of Telemarkski
【Where Telemark comes from? 】
Telemarkski can be classified into two categories, the Classic Telemark and the Modern Telemark.
The Classic Telemark was popular in Norway in the late 19th century and it is said that this style was completed in a little village called Morgedal in the Telemark District.  
After the Classic Telemark was introduced to the Central Europe areas, it was developed into the Alpine style with fixed heels.  The technique of Telemark disappeared from the Ski Scene for 60-70 years.
In the early 1970s, Telemark Ski was reintroduced in Colorado, USA.   
Telemark revived as a technique to turn with cross-country skis and it attracted skiers in the natural recurrence movement.   This is the Modern Telemark.
The Modern Telemark started as a technique to ski in the backcountry areas with light cross country skies.
The fun of turns itself started to attract skiers and telemark races promoted drastic technical development of Telemarkski.  
Technique of Telemarkski
【Telemark Turns】
Telemarkski is the skiing technique without fixing heels. It is rather unstable if you ski with both feet together. Stability of turns can be gained by opening legs, to and fro, in the telemarkski position.
The new telemark skiers tend to favor dynamic and sharp turns with hard equipment. However, the basic tools make it possible to walk easily and to make elegant turns. It is not possible to judge which is better.
The most important point of telemark turns is to keep the balance. It is necessary to have keen sense of balance, to and fro, and to keep the stability of right and left at the high speed.
Telemark turns were originally developed to make turns on soft or new snow.  However, with improvement of equipment and techniques, telemark ski developed to the all round ski technique to make turns on any snow conditions.