Structures

The following is a list of all Structures that are added by the Betweenlands mod.

Natural

Cavern: The Caverns of the Betweenlands, made up of Betweenstone and various cave flora.
Chiromaw Matriarch Nest: A nest of giant winged beasts, often found on Raised Islands.
Cragrock Spire: A mountainous formation of Cragrock found in Deep Waters.
Giant Bulb-Capped Mushroom: A large glowing blue mushroom found in Patchy Islands.
Giant Hollow Log: A large, rotten log of a fallen tree found in Swamplands.
Giant Root: A large, overgrown and varying root formation found in Coarse Islands.
Giant Weedwood Tree: A towering tree with a massive canopy and hanger vines.
Hearthgrove Tree: A small, pale tree with an orange canopy found in Patchy Islands.
Lake Cavern: The deepest part of the Caverns, made up of Pitstone and various cave flora.
Nibbletwig Tree: A tall, brown tree with a dark green canopy found in Swamplands.
Raised Island: A giant sky island supported by roots found throughout Raised Isles.
Rotten Weedwood Tree: A deathly tree stripped of leaves found in Sludge Plains.
Rubber Tree: An uncommon tree found in Swamplands that can be tapped.
Sap Tree: An uncommon tree found in many Betweenlands locations that provides edible sap.
Silt Beach: A coastal flat of silt found in Swamplands and Patchy Islands.
Spirit Tree: A sentient, elderly tree whose power is determined by the wisps surrounding it.
Underground Oasis: A patch of underground flora containing valuable natural resources.
Weedwood Tree: The basic willow-like tree found commonly in the Betweenlands.

Cragrock Tower: An extremely tall, monolithic tower filled with valuable loot.
Druid Circle: A structure in the Overworld that provides the needs to get to the Betweenlands.
Idol Head Statue: A giant head of cragrock with buried loot, found in Patchy Islands.
Ruins: Small ruins of betweenstone or mud bricks, found in Marshes and Sludge Plains.
Shrine: A small shrine with a random spawner and loot, found in Marshes and Sludge Plains.
Sludgeon: A massive, labyrinthine, sludgy dungeon housing the Pit of Decay.
Tar Pool Dungeon: A structure with a Tar pool that spawns Tar Beasts, found underground.
Underground Ruins: Small ruins of pitstone bricks that spawn in the Lake Caverns.
Wight Fortress: A massive fortress dungeon housing the Primordial Malevolence.

Portal Tree: The tree created with the Swamp Talisman that allows travel to the Betweenlands.
Tunnel Entrances: Holes that appear in the ground during certain events and spawn mobs.

Release 3.6.0: Added Raised Islands and Chiromaw Matriarch Nests.
Beta 3.5.0: Added the Sludgeon and Tunnel Entrances.
Release 3.4.0: Added Spirit Trees.
Release 3.3.0:
- Added Hearthgrove Trees, Nibbletwig Trees, and Giant Roots.
- Renamed Abandoned Shack to Ruins.
Beta 2.0.0: Added Underground Oases.
Beta 1.0.0: Introduced.

The Betweenlands Environment
Dimensions	The Betweenlands • The Nether • The Overworld
Biomes	Coarse Islands (Raised Isles) • Deep Waters • Marsh (Marsh 0 • Marsh 1) • Patchy Islands • Sludge Plains (Clearing) • Swamplands (Clearing)
Structures
	Natural	Cavern (Lake) • Chiromaw Matriarch Nest • Cragrock Spire • Giant Bulb-Capped Mushroom • Giant Hollow Log • Giant Root • Hearthgrove Tree • Nibbletwig Tree • Raised Island • Rubber Tree • Sap Tree • Silt Beach • Spirit Tree • Underground Oasis • Weedwood Tree (Giant • Rotten)
	Buildings	Cragrock Tower • Druid Circle • Idol Head Statue • Ruins (Marsh • Sludge Plains • Underground • Underwater) • Shrine • Sludgeon (Barrishee Lair • Crypt • Crypt Tunnels • Labyrinthine Vaults • Pit of Decay • Sludgeon Tower • Winding Walkways) • Tar Pool Dungeon • Wight Fortress
	Post-Gen	Portal Tree • Tunnel Entrances
Events	Auroras • Blood Sky • Dense Fog • Heavy Rain (Thunderstorm) • Rift • Spook • Winter (Snowfall)
Mechanics	Aspects • Corrosion • Decay • Food Sickness • Middle Gem Circle • Radial Equipment Menu • Stench
Other	Advancements • Effects • Loot Tables • Music