The development and conservation of natural resources in ways that benefit mankind is geological engineering. Groundwater resources, geothermal energy, subsurface contamination, slope stability, environmental site design, and mineral and petroleum exploration and production are just a few of the fields covered. Geological engineering is a branch of engineering that focuses on applying geological science and engineering principles to a variety of industries, including civil engineering, mining, environmental engineering, and forestry, to name a few. Geotechnical, geological, geophysical, hydrogeological, and environmental data collecting are all planned, designed, and implemented by geological engineers. Manual ground-based procedures, deep drilling, geochemical sampling, advanced geophysical techniques, and satellite surveying are all examples of this. Geological engineers are also interested in analysing past and future ground behaviour, mapping at all sizes, and ground characterisation programmes for specific engineering needs. The study of the behaviour of soils under the influence of loading pressures and soil-water interactions is known as geotechnical engineering. This knowledge is used to design waste containment foundations, retaining walls, earth dams, clay liners, and geosynthetics. Geotechnical engineers' objectives might range from foundation design and temporary excavation support to route selection for railways and highways, as well as the increasingly significant fields of waste landfill disposal and groundwater contamination. As a result, the geotechnical engineer participates in field and laboratory investigations to identify the engineering parameters of site soils and other geomaterials, which are then used in the analytical examination of the problem.