Alexco Resource Corp. engages in the mineral exploration, and mine development and operational activities primarily in Yukon Territory, Canada. The company explores for silver, lead, and zinc deposits. It owns interests in the Keno Hill Silver District project that comprises the Flame & Moth, Bermingham, Lucky Queen, Bellekeno, and Onek deposits, as well as 725 surveyed quartz mining leases, 866 unsurveyed quartz mining claims, 8 placer claims, and 2 crown grants covering an area of 233 square kilometers located in Yukon Territory. The company also provides mine and industrial site related environmental services, including management of the regulatory and environmental permitting process, environmental assessments, and reclamation and closure planning in Canada, the United States, and internationally. Alexco Resource Corp. was incorporated in 2004 and is headquartered in Vancouver, Canada.