Caverns - Area 1: Excavation Transfer

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Doom 3 maps
Mars City: Intro 1 2 3 Alpha Labs: 1 2 3 4 Enpro Communications: 1 2 Monorail/Recycling: 1 2 3 Delta Labs: 1 2a 2b 3 4 Hell Delta Complex Central Processing: 1 2 Excavation: 1 2 3 End

Caverns - Area 1: Excavation Transfer is the twenty-fifth level of Doom 3. The player advances towards the primary excavation site, where the Hell portal is located. Level 1 contains the oldest, original Mars base.