The Green Line runs 37 km between Koroit and Minhamite - is on average 30 m wide with sections up to 50m wide where the former railway stations were located at Warrong, Woolsthorpe, Hawkesdale (station sold) and Minhamite (site leased).The road and rail reserves of The Green Line are one of a small number of places where you can see with your own eyes what large parts of the Victorian Volcanic Plain would have looked like prior to European settlement.

The reserve is crown land shared by VicTrack and Moyne Shire Council. It was visited in 2012 by representatives of these agencies together with Landcare, the Spring Creek Fire Brigade and the Glenelg Hopkins Catchment Management Authority to determine the best method to protect the remnant of Basalt Shrubby Woodland which is listed as endangered.

An action plan was developed so that overtime, the threat from weeds such as broom, pines and poplars is reduced, the reserve environment improved, and to ensure the resulting large woody debris are not left on the reserve. Previously similar works have raised issues about a fire threat. These concerns are being addressed early on in the discussions by involving the CFA, the local community, and land managers.

The woody weed removal commenced winter 2013 and with funding support will continue into the following years - there are over 400 pine trees alone to be removed. Additional activities to support the reserves’ unique natural values are planned with support the from Landcare Australia, Moyne Shire Council, Victrack, the Basalt to Bay Landcare Network and the CFA Vegetation Officer, Anthony Watt.

In 2015 the Federal Green Army Crew working on the West East Link Connectivity Program for Basalt to Bay undertook a number of weed and surveying activities to help complement the larger scale effort. They cleared a path through a large 1ha stand of Silver Poplars clogging Lochaber Gully, walked the 37km and treated the briar roses and small pines, and met with council and local member for South West Coast Denis Napthine to teach him how to set up remote sensing fauna cameras to record the fauna of sections of this remnant.
Several new species were noted and recorded on a video: https://youtu.be/BN59Fwq59sg