Toll 18. A square wave at 220 Hz, originating from Mountain Pass. Recorded in a cave environment, era: 1920s. One of 5555 echoes — sounds no one thought to save.
Name
ECHO #3086 — Toll 18
ID#3086
Rarity
LO:61%
Frequency
220 Hz
X-HI:8%
Wave Type
Square
X-HI:10%
Resonance
Cold
X-HI:10%
Era
1920s
EX:4%
Origin
Mountain Pass