Mining Lands Administration System (MLAS)

Register a mining claim, manage your mining claims online and apply for a prospector’s licence.

Ontario's mineral sector

The programs, products and services that make Ontario a premier global destination for exploration and mining.

Mining Act

Information on the Mining Act and related policies, standards and directives.

Mining sequence

Information and resources on the stages of the mining sequence, including requirements for mineral exploration and development.


Geology and geoscience

Learn about Ontario’s geology, the Ontario Geological Survey and access geoscience applications, maps and data.


Critical minerals

Read about critical minerals and Ontario’s plan for a critical minerals strategy.

Resource revenue sharing

Learn about agreements to share mining and forestry revenues with Indigenous communities.

Ring of Fire

About the Ring of Fire, a significant mineral development region in the Far North of Ontario.


Ontario Junior Exploration Program

Learn about funding to help junior mining companies finance early exploration.


Aboriginal Participation Fund

How Indigenous communities and organizations can get support to participate in economic development activities related to mineral exploration and development.


Aggregate resources

Learn about aggregates in Ontario and how you can apply to operate a pit or quarry, or comment on proposed projects.

Find pits and quarries

Locate pits and quarries in Ontario and access information on aggregate operations.


Reasoned decisions and recommendations

The Mining and Lands Tribunal issues reasoned decisions and recommendations to determine claims and settle disputes.

Appeals to the Ontario Mining and Lands Commissioner

Information on how you can apply, prepare and present your appeal or application to the Mining and Lands Tribunal.