Quaterra Resources Inc. is a junior copper exploration and development company. The Company is focused on advancing its copper projects in the Yerington District, Nevada, the United States. It operates through the exploration of mineral properties segment. It focuses on the development of Yerington Assets located in the Yerington Copper District, over 70 miles southeast of Reno, Nevada, which consist of the MacArthur oxide and sulfide deposits (the MacArthur Deposit); the Yerington pit oxide-sulfide deposit (the Yerington Pit); the Bear porphyry copper deposit (the Bear Deposit), and other properties. It holds over four exploration and option agreements totaling approximately 1,305 acres of private land north and east of the Yerington Pit site. It also holds interest in a property covering approximately 1,050 acres of private land covering a portion of the Bear Deposit. Its other properties include Santo Domingo Property, Uranium Properties, and Copper and Molybdenum Properties.