The Acadian Orogeny was a significant geological event that occurred during the Late Devonian period, approximately 375 to 350 million years ago. It primarily affected the region that is now the northeastern United States and eastern Canada, particularly the areas of the Appalachian Mountains. This orogeny resulted from the collision of the ancient continents of Laurentia and Gondwana, leading to the uplift and folding of rock layers. During the Acadian Orogeny, various geological formations were created, including the Acadian Highlands and the Maritimes Basin. The event contributed to the complex geological history of the region, influencing sedimentation patterns and the development of ecosystems. The orogeny also played a role in shaping the landscape we see today.