The Minister for Environment, Parks and Heritage, Brian Wightman, today said a large rock overhanging Jacobs Ladder on the Ben Lomond road has been safely removed, and the road has been re-opened.

"The Parks and Wildlife Service worked with consulting engineers Pitt & Sherry, and contractors Gradco and Adams Tree Services, to plan for the safe removal of the rock," Mr Wightman said.

"It's good to see all went to plan, and the road has now re-opened for safe access to Ben Lomond.

"Providing safe access to our parks and reserves is challenging because of the rugged landscapes and extremes of weather.

"Jacobs Ladder is a prime example, and managing this road requires ongoing expert advice and maintenance," he said.

The Ben Lomond road was closed by the PWS on Tuesday after discussions with village operators and residents to identify a time when removal of the rock would least disrupt visitors.

The rock was dislodged using inflatable air bags. A gravel 'pillow' was laid on the road surface where the rock was expected to land to cushion its impact to protect the road.

When dislodged, the rock column split in two, with the larger section landing safely on the road below and the second large piece falling further down the slope. The rock pieces were broken up and removed by an excavator.

The road was re-opened to the public, following engineering advice that it was safe to do so.

The PWS will continue to seek geotechnical advice to determine the stability of rocks on Jacobs Ladder and management required for safe use of the road.

PWS thanked Ben Lomond businesses and interest groups for their patience and support during the road closure in August and this week.