Underground River Map (Atlas of Worlds)

Underground River MapMap Level: 77
Map Tier: 10
Guild Character: ÉTravel to this Map by using it in the Templar Laboratory or a personal Map Device. Maps can only be used once.Acquisition
Level: 77
DROP DISABLEDPurchase Costs

Normal	4x Orb of Alchemy
Magic	4x Orb of Alchemy 1x Orb of Chance
Rare	5x Orb of Alchemy
Unique	10x Chaos Orb

Sell Price
1x Scroll FragmentMiscellaneous
Item class: Maps
Metadata ID: Metadata/Items/Maps/MapAtlasUndergroundRiver

Underground River

Map area

Id	MapAtlasUndergroundRiver
Act	11
Area level	77
Bosses	It That Fell
Area type tags	cave
Tags	indoors_area, map, einharmaps, cave_area
	The Shaper: Life, like still water, becomes trapped. Stagnant. Foul.

250px

This map is based on the first part of The Caverns in Act 2. It's a linear series of caverns connected by narrow bridges.

Map Type: Indoors

Underground River Map example layout

Boss Arena

An L-shaped cavern at the end of the map. Entrance seals when the boss is engaged.

Boss

It That Fell, based on Q'uru from The Caverns. Repeats the following sequence of maneuvers:

• Summons a small pack of Plummeting Ursas.
• Uses EarthquakeEarthquakeAttack, AoE, Duration, Slam, Melee
  Radius: 18 / 28
  Mana Cost: 10
  Cast Time: 1.00 sec
  Attack Speed: 75% of Base
  Effectiveness of Added Damage: (85%-120%)Requires Level 28Smashes the ground, dealing damage in an area and cracking the earth. The crack will erupt in a powerful aftershock after a short duration. Cracks created before the first one has erupted will not generate their own aftershocks. Requires an Axe, Mace, Sceptre, Staff or Unarmed.Per 1% Quality:12341% increased Damage3% increased Damage
  1% increased Skill Effect DurationInitial Slam has 2% increased Area of EffectIncreases and Reductions to Spell Damage also apply to Attack Damage from this SkillDeals (85-120)% of Base Attack Damage
  Base duration is 1 seconds
  Aftershock deals 150% more Damage with Hits and AilmentsPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket. and jumps up, disappearing for a few seconds.
• Lands in the same spot and uses Earthquake again.
• Enrages for a few seconds.

It's highly recommended to prepare physical damage mitigation, including Immortal CallImmortal CallSpell, Duration, Guard
Mana Cost: (21-36)
Can Store 1 Use(s)
Soul Gain Prevention: 0.001 sec
Cooldown Time: 3.00 secRequires Level 34Take less Physical and Elemental Damage for a short time. Consumes up to 5 Endurance Charges to lengthen the buff and further lessen Physical Damage taken. Shares a cooldown with other Guard skills.Per 1% Quality:1231% increased Skill Effect Duration1% increased Cooldown Recovery Rate-0.1% less Physical Damage taken per Endurance Charge removed
0.1% less Elemental Damage taken per Endurance Charge removedBase duration is 1 seconds
(25-34)% less Elemental Damage taken
(25-35)% less Physical Damage taken
15% less Physical Damage taken per Endurance Charge removed
20% increased Buff Duration per Endurance Charge removed
This Skill's Cooldown does not recover during its effectPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket., in case of being overrun by Plummeting Ursas. It That Fell's melee damage is comparable to one of those Ursas, but it has higher attack speed, especially when enraged. The safest way to deal with this boss is to clear summoned Ursas as soon as possible, wait out the enrage and use the limited time before it uses the Neo maneuver again to deal damage. The pack of Ursas is usually 4-6 strong and there's a danger of being surprised later on by those that didn't drop initially. A good way to avoid that is to walk around the edges of the Earthquake the boss leaves behind when jumping. There seems to be no limit to how many Ursas can be summoned.

Items found in this area

Item
The GamblerThe Gambler5Divination Card"I don't believe in karma. If it were real, I would never win."	1
The Encroaching DarknessThe Encroaching Darkness8Map CorruptedNo matter where your dreams take you, Nightmare follows close behind.	1
The TrialThe Trial7Map Map Tier: 15 CorruptedYou cannot journey to new lands until you have the courage to leave the safety of home.	1
Hunter's RewardHunter's Reward3The TamingTo tame a beast, you first must subdue its heart.	1
Glimmer of HopeGlimmer of Hope8Gold RingWhen you dwell in total darkness, even the faintest light may guide you out.	1
Treasure HunterTreasure Hunter7Vaults of Atziri Corrupted"Don't worry, I know what I'm doing." - Toggo's Last Words	1
The Wolf's ShadowThe Wolf's Shadow3Hyaon's Fury"If I fall, we will fall together with my fangs in your throat."	1
Lysah's RespiteLysah's Respite6Agate Amulet CorruptedSo many memories, so much pain in such a small token. Drown it in blood so you can forget.	1

Item acquisition

This item is drop disabled.

Upgrade paths

This item can be acquired through the following upgrade paths or vendor recipes:

Amount	Ingredient	Type
3	Reef MapReef MapMap Level: 76 Map Tier: 9 Guild Character: YTravel to this Map by using it in the Templar Laboratory or a personal Map Device. Maps can only be used once.	Manual

Usage in upgrade paths

This item is used by upgrade paths or vendor recipes to create the following items:

Outcome	Amount	Ingredient	Type
Underground Sea MapUnderground Sea MapMap Level: 78 Map Tier: 11 Guild Character: 0Travel to this Map by using it in the Templar Laboratory or a personal Map Device. Maps can only be used once.	3	Underground River MapUnderground River MapMap Level: 77 Map Tier: 10 Guild Character: ÉTravel to this Map by using it in the Templar Laboratory or a personal Map Device. Maps can only be used once.	Manual
Shaped Phantasmagoria MapShaped Phantasmagoria MapMap Level: 76 Map Tier: 9 Guild Character: +Travel to this Map by using it in the Templar Laboratory or a personal Map Device. Maps can only be used once.	3	Underground River MapUnderground River MapMap Level: 77 Map Tier: 10 Guild Character: ÉTravel to this Map by using it in the Templar Laboratory or a personal Map Device. Maps can only be used once.	Manual

Other versions

• Underground River MapUnderground River MapMap Level: 80
  Map Tier: 13
  Guild Character: 9Life, like still water, becomes trapped. Stagnant. Foul.Travel to this Map by using it in a personal Map Device. Maps can only be used once., a legacy variant that was introduced in Metamorph.
• Underground River MapUnderground River MapMap Level: 75
  Map Tier: 8
  Guild Character: 9Life, like still water, becomes trapped. Stagnant. Foul.Travel to this Map by using it in a personal Map Device. Maps can only be used once., a legacy variant that was introduced in Blight.
• Underground River MapUnderground River MapMap Level: 76
  Map Tier: 9
  Guild Character: 9Life, like still water, becomes trapped. Stagnant. Foul.Travel to this Map by using it in the Templar Laboratory or a personal Map Device. Maps can only be used once., a legacy variant that was introduced in Legion.
• Underground River MapUnderground River MapMap Level: 76
  Map Tier: 9
  Guild Character: 9Life, like still water, becomes trapped. Stagnant. Foul.Travel to this Map by using it in the Templar Laboratory or a personal Map Device. Maps can only be used once., a legacy variant that was introduced in Synthesis.
• Underground River MapUnderground River MapMap Level: 74
  Map Tier: 7
  Guild Character: 9Life, like still water, becomes trapped. Stagnant. Foul.Travel to this Map by using it in the Templar Laboratory or a personal Map Device. Maps can only be used once., a legacy variant that was introduced in Betrayal.
• Underground River MapUnderground River MapMap Level: 69
  Map Tier: 2
  Guild Character: 9Life, like still water, becomes trapped. Stagnant. Foul.Travel to this Map by using it in a personal Map Device. Maps can only be used once., the current drop enabled variant that was introduced in Heist.
• Underground River MapUnderground River MapMap Level: 80
  Map Tier: 13
  Guild Character: 9Life, like still water, becomes trapped. Stagnant. Foul.Travel to this Map by using it in a personal Map Device. Maps can only be used once., a legacy variant that was introduced in Harvest.
• Underground River MapUnderground River MapMap Level: 80
  Map Tier: 13
  Guild Character: 9Life, like still water, becomes trapped. Stagnant. Foul.Travel to this Map by using it in a personal Map Device. Maps can only be used once., a legacy variant that was introduced in Delirium.
• Underground River MapUnderground River MapMap Level: 74
  Map Tier: 7
  Guild Character: 9Travel to this Map by using it in the Templar Laboratory or a personal Map Device. Maps can only be used once., a legacy variant that was introduced in War for the Atlas.
• Shaped Underground River MapShaped Underground River MapMap Level: 82
  Map Tier: 15
  Guild Character: ÉTravel to this Map by using it in the Templar Laboratory or a personal Map Device. Maps can only be used once., a legacy variant that was introduced in Atlas of Worlds.
• Underground River MapUnderground River MapMap Level: 70
  Map Tier: 5
  Guild Character: ÁTravel to this Map by using it in the Templar Laboratory or a personal Map Device. Maps can only be used once., the original variant.
• Underground River MapUnderground River MapMap Level: 72
  Map Tier: 5
  Guild Character: ÉTravel to this Map by using it in the Templar Laboratory or a personal Map Device. Maps can only be used once., a legacy variant that was introduced in The Awakening.

Version history

Version	Changes
3.5.0	The Atlas of Worlds has been shuffled. Most maps have changed tier and location within the Atlas. Many map bosses have also shifted around. Some have been retired and replaced! (Not in patch notes) The Atlas will now be shuffled every league.
3.1.0	The entire Atlas has been reworked. Many map names have changed, as have their balance, tier and position on the Atlas. Many maps have also had their boss fights swapped or completely reworked. The rules used to generate monsters in endgame maps have been significantly reworked and rebalanced around the rate at which we expect players to reliably clear out the map. In general, narrow, linear maps will contain fewer total monsters than maps with complex layouts. We will be closely monitoring and adjusting the balance of this change and expect to make further changes and improvements over time.
2.4.0	Most existing maps have been revamped to have more balanced monster composition, layouts, boss fights and rewards. (Not in patch note) The layout was swapped with Underground Sea Map. (Not in patch note) Beast of the Pits no longer the map boss. It That Fell became the map boss.
0.10.0	Start of open beta. Old map item were wiped from the server data. Map progress is re-tiered. Area level had changed to 70 (T5).
0.9.11	Introduced to the game. Initially, the area level is 61 (T2).