A concept under the seventh land under the seventh land is a concept used to refer to places that are located in the depths of the earth, where some studies and research focus on environmental and geological conditions that prevail there. This concept is part of geological sciences and a study from the perspective of the effects of human activities on the environment. This field also deals with the lessons learned from the exploration of the Earth's depths. The date of development under the seventh land of the date of the development of a concept under the seventh land dating back to many ages, where scientists began to search for the land resources and their characteristics. These studies began to develop significantly during the twentieth century, which led to important discoveries in the field of geology and mining. This development is a way for a deeper understanding of nature and environmental balance.