Buying Rural Land in Ontario: Do You Own the Mining Rights Under It?
In Ontario, the ground you walk on and the minerals beneath it can belong to different owners. Three questions tell you which situation you are buying into, and whether anyone can register a mining claim on your land.
Can someone stake a mining claim on the cottage or rural lot I’m buying in Ontario?
On a residential or cottage lot smaller than one hectare, not without the Minister’s consent: the Mining Act bars registering a mining claim on such a lot, and on a larger lot within 100 metres of a dwelling inside the property line, unless the Minister consents (s. 29(1)(c) and (d)). Separately, in Southern Ontario, mining rights held by the Crown under privately owned land have been deemed withdrawn from claim registration since October 28, 2009, but the Crown still holds those rights, and any claim, lease or licence that existed on that day survives (s. 35.1(2) and (3)).
Source: Mining Act, R.S.O. 1990, c. M.14, ss. 29 and 35.1 (Ontario e-Laws, consolidation from January 1, 2026)
Imagine owning a rural property for a couple of years and then being told that a stranger has registered a mining claim on part of your land. Under Ontario’s Mining Act, that can happen, and the person who registered the claim is generally the one required to confirm it with you.
I’m Arthur Zhao with AZ Real Estate Partners. Whether that scenario is even possible on a given parcel is largely settled before you ever make an offer. It turns on three questions: who holds the mining rights, which half of the province the land sits in, and what was already on the ground in 2009. This article walks through each one in that order, then covers what the law says if a claim does arrive after closing, and how to check before your conditions expire.
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Question 1: Who holds the mining rights?
The Mining Act defines mining rights as “the right to minerals on, in or under any land” and surface rights as “every right in land other than the mining rights” (s. 1). The same section defines a surface rights owner as someone shown in the land registry office as the fee simple owner of the land who does not own the mining rights.
So for any parcel, there are three broad possibilities:
- You own both. The mining rights were never separated from the land. The rest of this article mostly doesn’t affect you.
- The Crown holds the mining rights. This is the situation the 2009 amendments to the Act were written for, and Questions 2 and 3 decide what it means for you.
- Someone else privately owns them. The Act says no mining claim can be registered on land where the mining rights have been sold, located, leased or included in a licence of occupation (s. 30(a)). What that private owner can actually do is a title question specific to the documents, and one for your lawyer, not for a general article.
You will not find the answer in a listing description. It comes from the title: the parcel register and, where relevant, the original Crown grant of the land.
Question 2: Which side of the line is the land on?
Section 35.1(1) draws the line. Northern Ontario is the part of the province lying north of the south shores of the French River, Lake Nipissing and the Mattawa River. Everything else is Southern Ontario.
This matters because the Act treats Crown-held mining rights under privately owned surface land very differently on each side of that line. If you are not sure which side a particular property falls on, check it on a map against those three water bodies rather than assuming from the region’s name.
Crown-held mining rights under your land: south vs. north
⚠️“Withdrawn” is not the same as “yours.” In Southern Ontario the deemed withdrawal applies only where the Crown holds the mining rights, and the mining rights stay with the Crown. The withdrawal limits what others can do with them. It does not make you their owner.
Question 3: What was already there, and has anyone reopened it?
The southern withdrawal was a snapshot taken on October 28, 2009. Section 35.1(3) says any mining claims, mining leases or licences of occupation for mining rights that existed on that day are not affected and remain open for prospecting, sale and lease. Only when one of those interests later goes back to the Crown, by forfeiture, expiry, termination or otherwise, do those rights become deemed withdrawn too (s. 35.1(4)).
There is a second way the default can change: a surface rights owner can apply to have withdrawn mining rights reopened (s. 35.1(5)). If a previous owner did that, the land you are looking at may not have the protection you would assume from its location.
In practice, this means a southern property with Crown-held mining rights starts out closed to new claims, but you only know for sure once someone has checked the current claim map and the title history.
💡 My own judgment is that the word buyers should be most careful with is “withdrawn.” In Southern Ontario, withdrawal stops the Crown’s mining rights from being staked, sold or leased. It does not transfer those rights to you. You remain a surface rights owner, and the protection rests on a 2009 cut-off date, any interest that survived that date, and whether anyone has since applied to reopen. If you are buying in the south, ask your lawyer to confirm all three, not just whether mining rights were reserved.
If a mining claim is registered on your land after you buy
Several parts of the Act come into play when the land is open and someone registers a claim:
- You must be told. When a claim is registered on land that has a surface rights owner, the claim holder has 60 days to give you confirmation of the registration in the manner the regulations require, or to ask a recorder for an order waiving that step. If neither happens, the claim becomes invalid 60 days after registration and the system cancels it automatically (s. 46(1) to (4)).
- Ground close to your home is restricted. Without the Minister’s consent, no claim can be registered on a residential or cottage lot smaller than one hectare. On a lot of one hectare or more, consent is needed for land within 100 metres of a dwelling on the lot and inside the property line (s. 29(1)(c) and (d)). Note that this is a consent requirement, not an absolute ban.
- Damage must be paid for. A person who prospects, carries out exploration on a claim, or conducts mining operations must compensate the surface rights holder for damage to the surface rights (s. 79(2) and (2.1)). If the two sides can’t agree, either can apply to the Ontario Land Tribunal to set the amount (s. 79(4)).
None of this gives the surface rights owner a veto over a properly registered claim. It gives you notice, distance from your dwelling unless the Minister consents otherwise, and a route to compensation.
How to check before your conditions expire
These checks fit naturally into the conditional period, in this order:
Have your lawyer read the title for a mining rights reservation
Look the parcel up on the MLAS Map Viewer
MLAS (Mining Lands Administration System) has a Map Viewer that, according to the Ontario government (2026), non-registered users can use to view active unpatented mining claims. You do not need an account to look. Registering a claim, by contrast, requires an MLAS account and a valid prospector’s licence.If the land is in the north, plan for a withdrawal application
Who Owns the Water in Front of Your Ontario Waterfront Property — and Who Approves Work on the Shore →Shore Road Allowance: Why Your Waterfront Lot May Not Reach the Water →Buying Land in Northern Ontario? Your Tax Bill Comes from the Province, Not a Municipality →Ontario Home Buying Guide →
Frequently Asked Questions
Can someone stake a mining claim on my cottage lot?
It depends on who holds the mining rights and where the land is. In Southern Ontario, Crown-held mining rights under privately owned land have been deemed withdrawn from claim registration since October 28, 2009, unless a claim already existed then or the rights were later reopened (Mining Act s. 35.1). Anywhere in the province, a claim on a cottage lot under one hectare needs the Minister’s consent (s. 29(1)(c)).
If my land is in Southern Ontario, do I own the minerals under it?
Not because of the 2009 rules. Section 35.1(2) of the Mining Act withdraws Crown-held mining rights from prospecting, claim registration, sale and lease, but the rights remain with the Crown. Whether you own them depends on your title, which your lawyer can confirm.
Do I get paid if a prospector damages my land?
Yes, the Mining Act requires anyone who prospects, explores on a claim or conducts mining operations to compensate the surface rights holder for damage to the surface rights (s. 79(2) and (2.1)). If you can’t agree on the amount, either side can apply to the Ontario Land Tribunal to decide it (s. 79(4)).
How can I check whether there is a mining claim on a property I’m looking at?
Ontario’s MLAS Map Viewer shows active unpatented mining claims, and you don’t need to register to use it (Ontario government, 2026). Whether the mining rights were reserved or separated is a separate title question, best answered by your lawyer from the parcel register.
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