Indiana Completed South Lake Mining Reclamation Project
The project remediated over 81 acres of former mine land to eliminate environmental and safety hazards.
Updated on Sept. 29, 2026 in Environmental
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On October 6, 2025, the Indiana Department of Natural Resources received the Interior States Region Abandoned Mine Land Reclamation Award for its completion of the South Lake Highwall Project. This effort restored more than 81 acres of land in the Greene-Sullivan State Forest, addressing legacy mining risks.
Why it matters
Abandoned mine land projects are essential for mitigating health and safety hazards left behind by historical mining operations. The state-led initiative aims to recover degraded landscapes and prevent persistent environmental damage like acid mine drainage.
The project eliminated 3,550 linear feet of highwalls and regraded 49 acres of spoil slopes across an 81-acre site. Crews also treated five active acid seeps and buried coal waste to neutralize the threat of acid mine drainage.
The players
Indiana Department of Natural Resources
The state agency responsible for managing natural resources and executing legacy mining site remediation.
Jefferson Township
A local administrative entity that partnered with state forestry officials to complete the reclamation.
The details
The project team utilized intensive site engineering to reshape the terrain by regrading spoil slopes—piles of waste rock left over from surface mining. Workers systematically buried toxic coal waste materials to prevent acid mine drainage, a process where rainwater reacts with sulfur-bearing minerals to produce sulfuric acid runoff. This work was conducted through a partnership between the Indiana Department of Natural Resources Division of Forestry and Jefferson Township.
Timeline
1982: Indiana's Abandoned Mine Land (AML) program commenced restoration efforts.
1992: The Abandoned Mine Land Reclamation Awards program was established.
October 6, 2025: Indiana received the reclamation award for the South Lake Highwall Project.
The Tech Race
This project fits into Indiana's long-standing restoration trajectory, which has targeted over 25,659 acres for cleanup since 1982. It extends the state's work in managing complex environmental legacy challenges through structural civil engineering.
Residents and visitors to the Greene-Sullivan State Forest now benefit from a safer, more stable landscape where environmental hazards have been mitigated. The completed project restores usable land area to the public for forestry and recreation purposes.
The takeaway
This project underscores the ongoing effort required to reverse the legacy of abandoned coal mining in Indiana. Residents can track the progress of future remediation efforts by monitoring annual reports from the state's Abandoned Mine Land program.
Further reading
For broader context on land restoration efforts, see the Environmental section.
Source note: This article includes information reported by The Times of India.
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