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GIS Tunnel Alignment

Reference map showing the proposed 1-mile tunnel route, facility footprints, state boundary crossing, and surrounding infrastructure.

TENNESSEEMISSISSIPPIStateline RoadTulane RoadStanton RoadRailroad (Active)Colossus 25400 Tulane RdWhitehaven, Memphis TN350,000 GPUsASTARTColossus 2 South2400 Stateline RdSouthaven, MSGB300 Processors | $20B InvestmentBENDPower PlantSouthaven CC780 MWColossus 13231 Riverport RdMemphis, TN200,000 H100 GPUs, 150 MW~12 mi NWState Line Crossing~35.0042° N~1 Mile(5,280 ft)Tunnel Corridor BufferN~0.5 mile35.0345°N, -90.0235°W34.9955°N, -90.0180°WCOLOSSUS UTILIDOR — TUNNEL ALIGNMENTGIS Reference Map | David T Phung | Feb 2026David T Phung

Map Legend

Proposed Tunnel
Colossus 1
Colossus 2 (Tunnel Start)
Colossus 2 South (Tunnel End)
TN/MS State Boundary
Power Plant (780 MW)
Major Roads
Active Railroad

Facility Details

Colossus 1

3231 Riverport Rd, Memphis, TN

Owner: xAI

200,000 H100 GPUs, 150 MW

35.0597° N, -90.1562° W

Point A — Colossus 2 (Tunnel Start)

5400 Tulane Road, Whitehaven, Memphis, TN

Owner: CTC Properties / xAI

350,000 GPUs, Tesla Megapack backup

35.0345° N, -90.0235° W

Point B — Colossus 2 South (Tunnel End)

2400 Stateline Road, Southaven, MS

Owner: MZX Tech LLC / xAI

GB300 Processors, $20B investment, 810K sq ft

34.9955° N, -90.0180° W

Southaven Combined Cycle Plant

Stanton Road, Southaven, MS

780 MW natural gas generation

Primary power source for all facilities

Adjacent to Colossus 2 South

Tunnel Specifications

Length: ~5,280 ft (1 mile)

Inner diameter: 12 ft

Depth: 30-50 ft below grade

Uses: Power, fiber, cooling, transport

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Tunnel Alignment Map

Satellite view of the proposed 1-mile tunnel route from Colossus 2 (Memphis, TN) to Colossus 2 South (Southaven, MS). Use the layers control to toggle overlays.

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Geological Cross-Section

Subsurface conditions along the tunnel alignment. Hover over layers for details. The target boring zone (30-50 ft) sits in favorable alluvial clay.

Geological Cross-SectionGround Surface0 ftFill / Topsoil0-10 ft10 ftLoess (Wind-blown Silt)10-25 ft25 ftAlluvial Clay25-60 ft60 ft100 ftSand & Gravel60-100 ftBORING ZONE (30-50 ft)