Land use conflicts are not a new phenomenon, especially when new sustainable establishments, such as mining, hydroelectric energy, and wind power, are necessary to mitigate the climate change. In Sápmi, the region of the indigenous people of Scandinavia, Sámi, there has been land use conflicts between Sámi people and mining companies since the opening of the mines and are still ongoing today. Previous research has concluded various reasons as to why this conflict has started and is still ongoing: mining legislation, indigenous peoples’ rights’ legislation, socio-environmental impacts caused by mining, lack of participation in decision-making, lack of monetary compensation, and distrust towards mining companies and the government. This thesis has investigated what Sámi people themselves perceive to be the biggest causes to the conflict. Although Sápmi is spanning over several countries, only the Swedish part of Sápmi has been investigated. Since this thesis investigates people’s perception of a conflict, this investigation used a qualitative method. A total of seven interviews was conducted with Sámi people living in Swedish Sápmi. The results show that even though there are an array of different causes to the conflict, the biggest reasons are the environmental impacts mining has on the nature, and the question of indigenous peoples’ rights and the right to involvement. Other reasons that have been brought up are the mining legislation regarding foreign companies prospecting in Sweden, and the lack of research done on the accumulated environmental and social effects various establishments have, such as mining, hydroelectric energy, and wind power. The discussion section compares this thesis’ results with previous research, as well as comparing how British Columbia, Canada, have dealt with a similar conflict.