Comstock Mining Inc. engages in the exploration, development, and production of gold and silver in Nevada. It operates through two segments, Mining and Real Estate. The Mining segment owns and controls approximately 9,358 acres of mining claims and parcels, including approximately 2,396 acres of patented claims and surface parcels; and approximately 6,962 acres of unpatented mining claims in the Comstock and Silver City districts. It primarily focuses on exploring and developing properties in the Dayton and Lucerne resource areas. The Real Estate segment comprises land and real estate rental properties, as well as the Gold Hill Hotel, including 19 leasable rooms, 4 cottages, a bar, and a restaurant; 225 acre Daney Ranch property in Dayton, Nevada; and 98-acre industrial park and senior water rights in Silver Springs, Nevada. Comstock Mining Inc. has collaboration agreements with Oro Industries Inc. and Mercury Clean Up LLC for the manufacture and deployment of mercury remediation systems with proprietary mechanical, hydro, electro-chemical, and oxidation processes to reclaim, treat, and remediate mercury from tailings and industrial effluents. The company was incorporated in 1999 and is based in Virginia City, Nevada.