Abandoned Mine Portal
nounPronunciation: /əˈbændənd maɪn ˈpɔːrtəl/
The entrance or opening of a mine that is no longer actively worked or maintained, often presenting physical and chemical hazards. Portals require stabilization, hazard assessment, and may be sealed or controlled to prevent unauthorized access and contaminant migration.
Plain English
The entrance to an abandoned mine that needs safety assessment and potential sealing.
Etymology & History
Usage
"The abandoned mine portal posed immediate danger due to structural deterioration and unstable rock faces."
Style guide notes: Specify portal type (adit, shaft) when discussing specific features or remediation approaches.
Also known as
Contrasted with
Related Terms
Frequently Asked Questions
Why are abandoned mine portals dangerous?
Structural collapse, toxic gases, unstable ground, and contaminated water discharge create multiple hazards.
How should an abandoned portal be treated?
Assess hazards, stabilize structures, control drainage, and seal or fence to prevent access.
Why Test Candidates on This?
Critical for initial site assessment and public safety planning in reclamation projects.
Required skill level: Mid