government only have a mandate to Act through statutes.

i can not find a statute that has anything about a hidden lien,

but i found a statute that has a hidden easement,


In Canada

Land Act

Right of way and easement
40* (1)*The minister may, subject to terms and conditions the minister considers advisable,
(a)*grant or otherwise create a right of way or easement over Crown land, and
(b)*grant or otherwise create over Crown land, the title to which is not registered under the Land Title Act, an easement without a dominant tenement for any purpose necessary for the operation and maintenance of the grantee's undertaking, including a right to flood.
(2)*An easement of the kind described in subsection*(1)*(b)
(a)*is not registrable, and
(b)*ceases to exist over land forming all or part of its servient tenement the title to which becomes registered under the Land Title Act, but continues over any part of its servient tenement the title to which remains unregistered.


Easements are incorporeal hereditament, an intangible right.
Everything the government does is intangible.
All invisible borders only existing on paper.

Because your land can be expropriate or have the mineral rights given away it seems that fee simple is closer to a profile a prendre.