New Castle offers an inviting environment for business. At the top of the list is the natural environment. New Castle sits at the western edge of the Rocky Mountains. We have more temperate summers than the plateau country to the west, and our winters are milder than the high mountains to the east. Our air and water are clean, and we have approximately 300 days of sun, which makes western Colorado an ideal location for any business. We are located on Interstate 70 and near local and regional airports, allowing easy access to major markets.