Note
The Challenge Ratings are based on the idea that you'll be with a party.
If you're going solo, it's suggested you add 2-3 levels to the CR (in many cases (Areas), you are better off adding 4-5 Levels...depending on your Build, and especially whether or not your Build utilizes Magic (divine/arcane) or UMD (considering how easily dispellable UMD is from Scrolls).
The stated CR of some areas is quite wildly different from the real difficulty.
Distribution
| Levels
|
Area Count
|
| 00-05
|
20
|
| 05-10
|
18
|
| 10-15
|
16
|
| 15-20
|
15
|
| 20-25
|
15
|
| 25-30
|
6
|
Surface Level 0-5
| CR
|
Area
|
| 0.5
|
Soubar Well
|
| 1
|
Chionthar East, from Outer City -> Wyrms Crossing -turn left before crossing the bridge.
|
| 1
|
Mausoleum (from Graveyard)
|
| 1.5
|
BG Outer City, Graveyard
|
| 2
|
BG North, Bandit Cave
|
| 2
|
Hilltop Ruins Level 1
|
| 2,5
|
Mausoleum Floor 2
|
| 2.5
|
Hilltop Ruins Level 2
|
| 2.5
|
BG, East Gate Sewers
|
| 2.5
|
Trade Way, Road south of BG
|
| 3
|
Boareskyr Bridge, Bear Cave
|
| 3
|
Gibberling Cave
|
| 3
|
Chionthar East, Ruins
|
| 4
|
BG, Palace District Sewers
|
| 4
|
Cloakwood East
|
| 4
|
Boareskyr Bridge
|
| 4,5
|
Underground Ruin (Mausoleum Floor 3, PARTY RECOMMENDED. Lots of offensive spellcasters therein.)
|
| 5
|
Northern Tradeway, Road south of Soubar
|
Surface Level 6-10
| CR
|
Area
|
| 6
|
Lion's Way, Road south of FAI
|
| 6
|
Northern Tradeway, Ant Burrow
|
| 6
|
North of Beregost, Road
|
| 6
|
Cloakwood East, Mine
|
| 6
|
Ulgoth's Island
|
| 7
|
North of Beregost, Goblin Mine
|
| 7
|
Thundar's Ride (CR 8 at night)
|
| 7
|
Boareskyr Bridge, Bridgefort
|
| 7
|
Sea Cave Trolls, Next to Candlekeep
|
| 8
|
North of Beregost, Overgrown Abandoned Chapel
|
| 8
|
BG, Sewer Bowels
|
| 8
|
Thundar's Ride, Water Cave
|
| 8
|
High Hedge
|
| 8
|
Woods of Sharp Teeth and Orc Cave
|
| 8
|
Lion's Way, Gnoll Cave
|
| 8
|
Cloakwood Central
|
| 9
|
Dragonspear Exterior and Castle
|
| 10
|
Cloakwood Central, Minotaur Cave
|
| 10
|
BG, Undercity
|
Surface Level 11-15
| CR
|
Area
|
| 12
|
Cloakwood Central, Hag Cave
|
| 12
|
Cloakwood North-West
|
| 12
|
Chionthar West, Next to Ulgoth's Beard
|
| 13
|
Uldoon's Trail, North of Nashkel
|
| 13
|
Cloakwood North-West, Haunted House Level 1
|
| 13
|
Skuldask's Cave (probably higher)
|
| 13
|
High Moor Ruins (careful very dangerous)
|
| 14
|
Cloakwood North-West, Haunted House Level 2
|
| 14
|
High Moor South
|
| 14
|
Ulgoth's Island, Crab Cave
|
| 14
|
Ulgoth's Beard, Pirate Cave
|
| 14
|
Xvarts
|
| 14
|
Fields of the Dead
|
| 15
|
The Troll Claws, Elder Ogre Stronghold
|
| 15
|
Gullykin, Crypt
|
| 15
|
South of Beregost, Wyverns
|
| 15
|
Winding Waters
|
Surface Level 16-20
| CR
|
Area
|
| 16
|
Fields of the Dead, Crypt
|
| 16
|
Troll Claws, Ogre Cave
|
| 16
|
Corm Orp
|
| 16
|
Winding Waters Temple
|
| 16
|
Durlag's Exterior and Tower
|
| 16
|
Cloud Peaks (Nashkel) Foothills
|
| 16
|
South of Beregost Mines (formerly Nashkel's Iron Mine); CR increases to 18 one descends the mines. Boss is CR 21.
|
| 17
|
Nashkel's Iron Mine Exterior
|
| 18
|
Troll Claws
|
| 18
|
Ulcaster Ruins
|
| 19
|
Durlag's Labyrinth Levels 1-2
|
| 19
|
Cloud Peaks
|
| 20
|
Troll Claws, Troll Cave
|
| 20
|
Ulcaster Shadow Ruins
|
| 20
|
Yuan-ti Hills
|
Surface Level 21-25
| CR
|
Area
|
| 21
|
Searing Tunnels and Searing Caverns
|
| 21
|
Cloakwood North-West, Haunted House Level 3
|
| 22
|
Crystal Cave (entrance at exterior Naskhel Iron Mines map)
|
| 22
|
Durlag's Labyrinth Level 3
|
| 22
|
Durlag's Labyrinth Level 4
|
| 23
|
Trollclaws, Old Mine
|
| 23
|
High Moor, Spirit Troll Cave
|
| 23
|
Wyrm's Cave
|
| 23
|
Yuan-ti Temple
|
| 23
|
Reaching Woods
|
| 23
|
Lizard Cave
|
| 23–24
|
Elder Ogre Stronghold (Trollclaws)
|
| 24
|
Stone Giants (not currently accessible)
|
| 24
|
Cloudpeaks - Lich Cave
|
| 24
|
The Forsaken Catacombs - First Floor
|
| 24
|
Forest of Wyrms
|
| 24–25
|
Reaching Woods, Talis
|
| 25
|
The Forsaken Catacombs - Second Floor
|
Surface Level 26-30
| CR
|
Area
|
| 26
|
Ziggurat
|
| 26+
|
Cliffside Keep (Note: CR increases as you descend interior levels)
|
| 27
|
Frost Giants Castle
|
| 28
|
Speartop
|
| 29–30
|
The Forsaken Catacombs - Third Floor and "Fourth" floor called Depths of the Undying
|
| 29
|
Netherese Maze
|
| 30
|
Lyran's Hold
|
| 30
|
Graypeaks
|
Upper Dark Areas
| CR
|
Area
|
| 5
|
South of Grottoes
|
| 6
|
Gauth Grottoes
|
| 8
|
Abandoned Mines
|
| 10
|
Titanfist Mines
|
| 17(?)
|
Blackrock
|
Underdark Level 0-5
| CR
|
Area
|
| 1
|
Sewers
|
| 1
|
Varalla's Passage
|
| 1
|
Wine Cellar & Herb Garden
|
| 1
|
S'samath Tombs
|
| 2
|
Mushroom Grove
|
| 3
|
South of Varalla's
|
| 4
|
West of Varalla's
|
| 5
|
Goblin Lake
|
| 5
|
Spore Grove
|
Underdark Level 6-10
| CR
|
Area
|
| 7
|
River Rift
|
| 9
|
Northwest of River
|
| 9
|
Upper Goblin Cave
|
| 9
|
Lower Goblin Cave
|
| 10
|
Southwest of River
|
Underdark Level 11-15
| CR
|
Area
|
| 12
|
Tarpits
|
| 13
|
Blackrock
|
| 13
|
Large Crypt
|
| 14
|
North of Tarpits
|
| 14
|
Illithid Mine Cavern
|
| 14
|
Illithid Mines (IG map states CR 15)
|
| 15
|
Ophidian Tunnels
|
| 15
|
Kro's Labyrinth
|
Underdark Level 16-20
| CR
|
Area
|
| 16
|
Illithid Hive (questionable rating, lots of illithids make it considerably harder)
|
| 16
|
South of Tarpits
|
| 16
|
Myconid Circles (says CR 17 on IG map)
|
| 18
|
Kro's Descent
|
| 20
|
East of Mistlake (questionable rating...more like CR 17)
|
Underdark Level 21-25
| CR
|
Area
|
| 21
|
Duergar Compound
|
| 22
|
Formian Ruins
|
| 22
|
The Wilds
|
| 24
|
The Wilds Descent
|
| 24
|
Lava Cave
|
| 25
|
Oghrann's Ruins
|
| ??
|
Illithid Mines (Deep) [Is this even a thing, or is it referring to the Illithid Hive?]
|
Underdark Level 26-30
| CR
|
Area
|
| 26
|
North of Mist Lake
|
| 28
|
Oghrann Great Halls
|
| 30
|
Netherese Ruins
|
And Avernus...
Exists too. Not.