This is a page dedicated to listing every known beta mountain a.k.a out of bounds areas in Shadow of the Colossus. Check Nomad's blog for more info.

Map showing all the squares that contain beta mountains. Picture by Nomad Colossus.
A3
First found by Pikol. These are lands which are untextured and unfinished, and they connected to the early version of quadrant B3, when it used to house Yamori A in the Sluice arena.
The model below the main one is likely to have been used for reflections, as it is the case with any other places with water.
B0
Beta mountains only seen in the Preview and earlier versions of the game.
B1
A large flat, mottled brown plain only seen in the Preview and earlier versions of the game.
B2
Cliffs only seen in the Preview and earlier versions of the game. They were speculated to be the leftover remains of the Worm's arena, but was discovered to just be an old world border and not a colossus arena.
C0
Beta mountains only seen in the Preview and earlier versions of the game.
D0
Beta mountain with a large crater only seen in the Preview and earlier versions of the game.
E0
A large flat beta mountain with another large crater only seen in the Preview and earlier versions of the game. They are very close to the Forbidden Lands.
G0
Cliffs only seen in the Preview and earlier versions of the game, they share a design with B2. Just like B2, this originally thought to be the left over remains of a colossus arena, but this time for Spider due to it's location near the bridge, but it was later discovered that this was originally an old world border and not a colossus arena.
H0
Name given by Nomad Colossus as the mountains almost resemble a temple.
I1
Originally, the I1 quadrant crashed the game whenever someone tries to access it, but thanks to Wisi, this quadrant is now accessible. It features paths deep into the quadrant and bizarre tower-like mountains and massive square-shaped holes.
It's likely that this quadrant once connected to the valley at the end of Parthenon, when it was located in 'H1'.
I2
A pathway that used to connect H2 and I3. It features a giant dam that became famous for its unique design in contrast to other structures in the game.
Check its page for more info.
I5
Small part of the missing quadrant only seen in the Preview and earlier versions of the game.
I6
Beta mountains with a strange stretched texture only seen in the Preview and earlier versions of the game.
I7
Plateau only visible via a modified Preview version created by Wisi. It's another early world border back when the map was entirely flat, from the same era as B2 and G0.
I8
First ever Beta mountain to be discovered; initially found by Khfan1.
It's very likely that this land connected to J7 and another version of I7, as the plateau found in the Preview version doesn't match with either.
J1
Beta mountains that are flat except for the western edge which features angulated mountainous structures.
J2
Beta mountains with a depression that connects to the Beta Dam mountains.
J7
Mountains with a high flat wall that originally started the theories about Griffin living in I7; the geometry and textures don't match however. This area is also known to have a low resolution texture when viewed from far away, which isn't the case for most out of bound areas.
It appears that something existed in I7 other than the beta lands found in the Preview version, as that model of I7 is reminiscent of ones found in the early days of NICO. It also doesn't match with either J7 or I8.![]() | |
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Characters | Wander · Mono · Agro · Dormin · Lord Emon · Guards · Shadow Creatures |
Colossi | I · II · III · IV · V · VI · VII · VIII · IX · X · XI · XII · XIII · XIV · XV · XVI |
Locations | The Forbidden Lands · Shrine of Worship · Colossus Arenas |
Main Items | Power-ups (Lizards · Fruit) · Weapons (Ancient Sword · Sword of the Sun · Queen’s Sword · Sword of Dormin · Bow & Arrow · Ancient Bow · Harpoon of Thunder · Life Sword) · Collectibles (Relics) |
Gameplay | Hard Mode · Save shrines · Time Attack · Reminiscence Mode · Watermellon · Barrel |
Media | Roar of the Earth (OST) · Official Art and Guide Book · Nico Bonus DVD · Film |
Releases | OPM Demo · PS2 original · PS3 remaster · PS4 remake · Credits |
Early Builds | Preview version · PSU Preview version · E3 Demo |
Unused Content | Unused Colossi · Colossus Test Stages · Unused Locations · Beta Mountains · Shadow of the Colossus Development Phases |