Summary

Mine Type	Open Pit
Status	Closing / Closed
Commodities	Coal (thermal)
Mining Method	Dragline Truck & Shovel / Loader
Production Start	...
Snapshot	The Highvale Mine was the largest sub-bituminous, surface coal mine in Canada. Active coal mining at TransAlta’s Highvale Mine ceased at the end of December 2021 with the end of coal-fired generation at the Keephills and Sundance power plants. Operations at the Highvale Mine shifted to full-time reclamation in January 2022 with plans to have the Highvale Mine fully reclaimed by 2046. TransAlta submitted under the Environmental Protection and Enhancement Act (“EPEA”) a combined Decommissioning Plan and Final Reclamation Plan for the Highvale Mine to the Alberta Energy Regulator (“AER”). At the same time, TransAlta filed a 10-year Renewal for the Highvale Mine under EPEA, the Water Act and the Coal Conservation Act in June 2022.

Deposit type

• Sedimentary

Summary:

Mining Methods

- subscription is required.

Comminution

Crushers and Mills

Processing

Summary:

Approximately 13 million tonnes of low­ sulphur content thermal ­grade coal are mined at Highvale each year and delivered to TransAlta’s Sundance and Keephills thermal generating plants. The Keephills 3 thermal plant began commercial operations in 2011 requiring an additional 1.8 million tonnes each year.

Commodity Production

Operational metrics

Personnel

Job Title	Name	Profile	Ref. Date
.......................	.......................		Dec 10, 2024