Considering the contemporary situation in the coal mining industry, it is possible to state that not all processes are safe and not all mines are rescue for employees. Even the existence of the innovative technologies and gas detection techniques sill leave the chances for explosions and other incidents. What can be said about the beginning of the 20 th century? Bellevue mine explosion took place in Crowsnest Pass, Alberta on December 9, 1910. This disaster carried away 31 lives, but the tragedy could influence more people as the normal worker compliment in the mine was 200 individuals. Having considered the situation in the mine and the conditions people worked at, it is possible to conclude that the disaster was manmade as no natural phenomena influenced the situation. The main idea of this paper is to consider the details of the explosion, check the main causes and influential factors and conclude whether it was possible to prevent the disaster and by means of which steps it could have been made. There have been a lot of different factors which pointed to the possibility of the event. Some of those were rather obvious, but no one paid attention to them. Workers and UMWA representatives pointed to the violation of the mine ventilation techniques many times. According to the norm, the main fan was aimed at producing 100,000 cubic feet of fresh air per minute while in reality it produced about 65,000 cubic feet of fresh air per minute. Inappropriate functioning of the fan resulted in its break in October 1910 for two hours, but the workers had to stay at their workplaces and continue working. The violation of the workers’ rights was one of the main signs that the mine owners did not care about the destiny of their employees, the increase in the production of coal was their main goal. The complaints of the union and demands to repair the ventilation were in vain. During the Thanksgiving Day the explosion occurred in the mine due to the impropriate ventilation and the inability of the gas flow out the mine. After cleaning the mass, the mine continued working without any changes in the ventilation system (Price, 2007). An impropriate air supply and the absence of the desire from the mine owners to repair it are considered to be the reasons for the explosion in the mine. Careless attitude to the working people and to the simplest safety regulations also added to the problem. There was one more cause which may be related to the reasons for the explosion. According to the testimonies of John Oliphant, a former fireboss in the mine who resigned on 15 th of September 1910, the mine plans did not corresponded to the real situation. Thus, “the company’s mine plans were incorrectly drawn because at the place of large part of the coal seam had not been extracted, even though the plan showed that it had” (Bercuson, 1978, p. 223). The coal mine managers did not keep any statistics which could show how much coal was taken from the area. As a result, much amount of gas escaped from the taken coal. Thus, it was impossible to dwell upon safety at the workplace. Being the second reason for the explosion, this fact remained the central for the investigation of the case. The presence of the gas in the mine was refused by firebosses Pow