A total of almost 100,000 acres were listed for sale in Colorado's Rio Blanco County recently, representing a total value of nearly $57 million in Rio Blanco County farms and ranches for sale. Rio Blanco County ranks 45th out of 64 counties in the Mile High State for the total acreage of land currently advertised for sale. Among cities in Rio Blanco County with farms, ranches, hunting land and other land for sale, Meeker featured the most land for sale. Mining and mineral extraction-related services are the main economic drivers in this part of Colorado. Rio Blanco County is one of the ten biggest counties in Colorado (3,222 square miles). It's located in the Northwest Colorado region of Colorado.