Despite the age, there are legal channels. Autodesk has a strict policy: they do not offer direct downloads for versions older than three releases. However, because this is abandonware in corporate terms, here are your options:

The "Companion" version serves as a bridge, offering dependable workflows for several core civil engineering tasks:

Import and edit survey data, perform COGO (Coordinate Geometry) tasks, and manage point groups.

: Type "Can you help me get a download for AutoCAD Civil 3D Land Desktop Companion 2009".

You can find original DVD box sets on eBay or specialized auction sites. Search for . Ensure the license is transferable or that you are buying it for the media only (you still need a valid license key from Autodesk).