Inside the tunnels.

ID: 1913 | This file appears in: BYU’s Underground
BYU’s extensive network of underground tunnels is used to supply campus buildings with heat, cooling, power, and internet. | Source: Image Source: BYU High Temperature Tunnels . Zwick Construction , https://www.zwickconstruction.com/byu-tunnels
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Image Source: BYU High Temperature Tunnels . Zwick Construction , https://www.zwickconstruction.com/byu-tunnels
" Inside the tunnels. " appears in: BYU’s Underground