The original terragear.org kept a mirror list, because in 2003 that was how you distributed a tarball. Every address on it is dead. This page is its replacement: where the code actually is now, and what happened to the places old documentation still points at.

Where TerraGear is today

Location	What it holds	State
gitlab.com/flightgear/terragear	The source. `git clone` gives you `next`.	Canonical. Last commit 9 August 2026.
github.com/FlightGear/terragear	A mirror of the source, and usually the first search result.	Last pushed 18 April 2022. Not archived, so it looks live.
hub.docker.com/r/flightgear/terragear	Prebuilt container images, tags `latest` and `ws20`, 146 MB each.	Both last pushed in 2019.

Checked 23 August 2026. Clone from GitLab; see Downloads for which branch and why, and Installing TerraGear for the build.

Two of the three are stale, and neither says so. The GitHub mirror’s 2022 date is the first thing most people learn about the project, and it reads as abandoned; the mirror is stale, the project is not. The Docker images are seven years behind the source: useful for a first look at the toolchain, not for current work.

What the original site listed

From /mirrors.html, last modified 4 April 2003. None of these answers today.

Web mirrors, as published then.
Location	Address	Was
USA, Minnesota	`www.terragear.org`	Master site
USA, Minnesota	`www.menet.umn.edu/~curt/terragear`	Alternate
USA	`terragear.sf.net`	Alternate
Germany	`www.de.terragear.org`	Mirror

FTP mirrors, for the source tarballs.
Location	Address
USA, Minnesota	`ftp://ftp.terragear.org/pub/terragear/`
Germany	`ftp://ftp.de.terragear.org/pub/terragear/`

The page noted that the whole site was under 1 MB and the FTP data about 6 MB, and invited anyone who wanted to run a mirror to write in. That is a fair picture of what distributing a project cost before hosted git.

And the CVS server

Alongside the mirrors, the source was available by anonymous CVS:

cvs -d :pserver:[email protected]:/var/cvs/TerraGear-0.0 login
  CVS passwd: guest
cvs -d :pserver:[email protected]:/var/cvs/TerraGear-0.0 co source

cvs.terragear.org does not resolve. The modern equivalent is one line, and it is on Downloads.