Open Collections will undergo scheduled maintenance on the following dates: On Monday, April 27th, 2026, the site will not be available from 7:00 AM – 9:00 AM PST and on Tuesday, April 28th, 2026, the site will remain accessible from 7:00 AM – 9:00 AM PST, however item images and media will not be available during this time.

Tailings and Mine Waste Conference

The Tailings and Mine Waste (TMW) Conference series began in 1978 and is now one of the most respected and established mining conferences in the world. This Conference is hosted through the Colorado State University in conjunction with the Norman B. Keevil Institute of Mining Engineering at the University of British Columbia and the University of Alberta on alternating years. The cIRcle collections include papers presented at the 2011, 2015, 2019, and 2023 conferences held in Vancouver, B.C.