What maps correspond to what test chambers in Portal 2?

Short of running through and dropping save points on every chamber, the easiest way to get wherever is to just map or changelevel sp_a4_stop_the_box (chapter 8, chamber 6, as an example) in the dev console.

However, this requires knowing what map is what chamber(s), and is not always obvious. Is there a list to match up the bsp's with the chambers?

Chapter 1 - The Courtesy Call

1. sp_a1_intro1 - Relaxation Vault
2. sp_a1_intro2 - Original 1
3. sp_a1_intro3 - Original 2
4. sp_a1_intro4 - Original 3 and 4
5. sp_a1_intro5 - Original 5
6. sp_a1_intro6 - Original 6
7. sp_a1_intro7 - Original 7
8. sp_a1_wakeup - GLaDOS
9. sp_a2_intro - Original 19

Chapter 2 - The Cold Boot

1. sp_a2_laser_intro - GLaDOS 1
2. sp_a2_laser_stairs - GLaDOS 2
3. sp_a2_dual_lasers - GLaDOS 3
4. sp_a2_laser_over_goo - GLaDOS 4
5. sp_a2_catapult_intro - GLaDOS 5
6. sp_a2_trust_fling - GLaDOS 6
7. sp_a2_pit_flings - GLaDOS 7
8. sp_a2_fizzler_intro - GLaDOS 8

Chapter 3 - The Return

1. sp_a2_sphere_peek - GLaDOS 9
2. sp_a2_ricochet - GLaDOS 10
3. sp_a2_bridge_intro - GLaDOS 11
4. sp_a2_bridge_the_gap - GLaDOS 12
5. sp_a2_turret_intro - GLaDOS 13
6. sp_a2_laser_relays - GLaDOS 14
7. sp_a2_turret_blocker - GLaDOS 15
8. sp_a2_laser_vs_turret - GLaDOS 16
9. sp_a2_pull_the_rug - GLaDOS 17

Chapter 4 - The Surprise

1. sp_a2_column_blocker - GLaDOS 18
2. sp_a2_laser_chaining - GLaDOS 19
3. sp_a2_triple_laser - GLaDOS 20
4. sp_a2_bts1 - GLaDOS 21
5. sp_a2_bts2

Chapter 5 - The Escape

1. sp_a2_bts3
2. sp_a2_bts4 - Turret Assembly Line
3. sp_a2_bts5 - Neurotoxin Generator
4. sp_a2_bts6 - Tube ride (no gameplay)
5. sp_a2_core - Core Swap

Chapter 6 - The Fall

1. sp_a3_00 - Falling
2. sp_a3_01 - Ruins
3. sp_a3_03 - Initiative Intro, Alpha Pump
4. sp_a3_jump_intro - Blue Gel 1
5. sp_a3_bomb_flings - Blue Gel 2
6. sp_a3_crazy_box - Blue Gel 3
7. sp_a3_transition01 - Beta Pump, Potato

Chapter 7 - The Reunion

1. sp_a3_speed_ramp - Orange Gel 1
2. sp_a3_speed_flings - Orange Gel 2
3. sp_a3_portal_intro - Gamma Pump, White Gel 1
4. sp_a3_end - Master Pump

Chapter 8 - The Itch

1. sp_a4_intro - Wheatley intro
2. sp_a4_tb_intro - Wheatley 1
3. sp_a4_tb_trust_drop - Wheatley 2
4. sp_a4_tb_wall_button - Wheatley 3
5. sp_a4_tb_polarity - Wheatley 4
6. sp_a4_tb_catch - Wheatley 5
7. sp_a4_stop_the_box - Wheatley 6
8. sp_a4_laser_catapult - Wheatley 11
9. sp_a4_laser_platform - Wheatley 12
10. sp_a4_speed_tb_catch - Wheatley 15
11. sp_a4_jump_polarity - Wheatley 16

Chapter 9 - The Part Where…

1. sp_a4_finale1 - Wheatley 17, This is that part.
2. sp_a4_finale2
3. sp_a4_finale3
4. sp_a4_finale4 - That happened.
5. sp_a5_credits - Credits

Here's the complete list of all single player maps in order, which should give you a reasonable granularity:

sp_a1_intro1
sp_a1_intro2
sp_a1_intro3
sp_a1_intro4
sp_a1_intro5
sp_a1_intro6
sp_a1_intro7
sp_a1_wakeup
sp_a2_intro
sp_a2_laser_intro
sp_a2_laser_stairs
sp_a2_dual_lasers
sp_a2_laser_over_goo
sp_a2_catapult_intro
sp_a2_trust_fling
sp_a2_pit_flings
sp_a2_fizzler_intro
sp_a2_sphere_peek
sp_a2_ricochet
sp_a2_bridge_intro
sp_a2_bridge_the_gap
sp_a2_turret_intro
sp_a2_laser_relays
sp_a2_turret_blocker
sp_a2_laser_vs_turret
sp_a2_pull_the_rug
sp_a2_column_blocker
sp_a2_laser_chaining
sp_a2_triple_laser
sp_a2_bts1
sp_a2_bts2
sp_a2_bts3
sp_a2_bts4
sp_a2_bts5
sp_a2_bts6
sp_a2_core
sp_a3_00
sp_a3_01
sp_a3_03
sp_a3_jump_intro
sp_a3_bomb_flings
sp_a3_crazy_box
sp_a3_transition01
sp_a3_speed_ramp
sp_a3_speed_flings
sp_a3_portal_intro
sp_a3_end
sp_a4_intro
sp_a4_tb_intro
sp_a4_tb_trust_drop
sp_a4_tb_wall_button
sp_a4_tb_polarity
sp_a4_tb_catch
sp_a4_stop_the_box
sp_a4_laser_catapult
sp_a4_laser_platform
sp_a4_speed_tb_catch
sp_a4_jump_polarity
sp_a4_finale1
sp_a4_finale2
sp_a4_finale3
sp_a4_finale4
sp_a5_credits