An orogene is a region of the Earth's crust that has been significantly deformed and uplifted due to tectonic forces. This process often occurs at convergent plate boundaries, where two tectonic plates collide, leading to the formation of mountain ranges. Orogenesis, the process of mountain building, can involve folding, faulting, and volcanic activity. Orogens can vary in size and complexity, with some of the most notable examples being the Himalayas and the Rocky Mountains. These regions are characterized by rugged terrain, diverse ecosystems, and rich geological history, making them important for both scientific study and natural beauty.