A mining operation requires a business to incur substantial up-front costs for exploration and development activities, and probably additional costs as part of the mine’s eventual closure and site rehabilitation. In Accounting for Mining, we describe how to account for the costs incurred at each phase of a mine’s development, with particular attention to the more complex topics of asset retirement obligations and environmental obligations. Several additional topics related to asset impairment, business combinations, and financial disclosures are also covered.