Editing Boundary

{{Status|Canon}}
{{Planet infobox
|image=
|name=Boundary
|system=[[Metrome system]]{{Ref/Book|Id=Enc22|Enc22|Page=50}}
|moon(s)=Two: [[Mistral]] and [[Levante]]{{Ref/Novel|Id=ET21|ET|Chapter=21}}
|gravity=
|diameter=
|daylength=
|yearlength=
|atmosphere=
|temperature=
|population="Almost a million people" {{Ref/Novel|ET|Chapter=35}}
|demonym=
|species=[[Human]] {{C|Non-native}}
|government=[[Unified Earth Government]]
|colonized=[[2419]]{{Ref/Reuse|Enc22}}
}}
'''Boundary''', identified by the [[Covenant]] as '''Ghado''',{{Ref/Novel|ET|Chapter=16}} is a [[human]] [[Human colonies|colony]] [[world]] in the [[Metrome system]].{{Ref/Reuse|Enc22}} 

==Overview==
===Environmental features===
Boundary's poles are encompassed by massive ice sheets, extending down towards a band of fertile terrain at its equator.{{Ref/Reuse|ET21}}

====Locations====
*[[Tindari]]
*[[Tyrrhen]]
**[[Boundary Lithos]]

Boundary has two moons, [[Levante]] and [[Mistral]],{{Ref/Reuse|ET21}} with Levante orbiting closer to the planet than Mistral.{{Ref/Novel|ET|Chapter=48}}

===Ecology===
In the fertile region at its equator, Boundary has dense forests of ancient coniferous and deciduous trees,{{Ref/Novel|Id=ET29|ET|Chapter=29}} including one coniferous species that climbs hundreds of feet into the air. Some have root structures the width of a [[Shearwater|Shearwater aerodyne]], large enough for a [[MJOLNIR Powered Assault Armor|MJOLNIR-clad]] [[SPARTAN-II program|SPARTAN-II]] to pass directly underneath without ducking their head. Dense underbrush covers almost every meter of the ground in these forests,{{Ref/Reuse|ET21}} including sparse orange and red vegetation{{Ref/Novel|Id=ET22|ET|Chapter=22}}, boscage and brush,{{Ref/Novel|Id=ET25|ET|Chapter=25}} and large-bladed pale-green grass.{{Ref/Novel|Id=ET28|ET|Chapter=28}}

Some animals on Boundary are larger than most other worlds because the ecosystems are so densely packed around the equator. The list of wildlife considered hostile in the wilderness around Tyrrhen is said to be "considerable". Boundary is home to many woodland creatures which clamber from tree to tree, small rodents, large birds, as well as a predatory animal known as a ''[[panthedron]]''.{{Ref/Reuse|ET21}} The ''panthedron'' is a large, predatory feline capable of reaching more than five meters in length, notable for being virtually blind and using a large crest on its skull for echolocation.{{Ref/Novel|ET|Chapter=37}}

Some areas on the planet are cultivated by colonists as recreational parks{{Ref/Novel|Id=ET24|ET|Chapter=24}} and grazing pasture for livestock, including cattle.{{Ref/Reuse|ET28}}{{Ref/Novel|Id=ET30|ET|Chapter=30}}

===Known residents===
*[[Walter Vickers]] - [[Corbulo Academy of Military Science]] cadet{{Ref/Site|URL=https://www.halowaypoint.com/en-us/universe/characters/walter-vickers|SiteName=Halo Waypoint|PageName=Walter Vickers|D=23|M=7|Y=2021}}{{Ref/Marketing|H4FuD|Halo 4: Forward Unto Dawn: Squad}}

==History==
===Forerunner era===
During the [[Forerunner]] [[ecumene]], Boundary was one of their worlds. It had a [[Lithos]] on it, serving as a gateway into the [[Domain]]. The Lithos later became buried.{{Ref/Novel|ET}}

===Rise of humanity===
It was settled in [[2419]], presumably making it a member of the [[Outer Colonies]].{{Ref/Reuse|Enc22}}

===Human-Covenant War===
{{Main|Human-Covenant war}}
In [[2539]] the planet was attacked by the [[Covenant]] as part of their genocidal war against humanity, though the planet was not fully [[Glassing|glassed]].{{Ref/Reuse|Enc22}}

===Post-war===
{{Main|Battle of Boundary}}
{{stub|section=yes}}

==List of appearances==
*''[[Halo 4: Forward Unto Dawn]]'' {{Fm}}
*''[[Halo: Empty Throne]]'' {{1st}}

==Sources==
{{Ref/Sources}}

[[Category:Human colonies]]