C4 operates Cloud City Farm, which completed its first year-round growing season at 10,200 feet using greenhouses and season-extending techniques to produce fresh food beyond the traditional growing season and increase food access for the community. The organization also runs a farmer's market offering Leadville-grown produce, seasonal Colorado vegetables, fresh-baked goods, and low-waste items, with participation in the SNAP Produce Bonus Program. The center provides free energy assistance programs, free energy audits, and hosts community events including plant sales, workshops, and cleanups throughout the year.