This sourcebook for Heavy Gear combines a two part article from Aurora magazine into a single document.
The articles were originally published as:
Into the Hinterlands, Volume 1: Gadiz – Part 1 in Aurora (Volume 2, Issue 6 - Nov 2008)
& Into the Hinterlands, Volume 1: Gadiz – Part 2 in Aurora (Volume 3, Issue 4 - Jul 2009)
The sourcebook features detailed setting information, stock NPCs and creatures, detailed key NPCs and campaign scenario ideas.
This sourcebook is available as a free download.