Mountain Tunnel
E1278185
UNEXPLORED
Mountain Tunnel is a major water conveyance tunnel within California’s Hetch Hetchy Power System that transports Sierra Nevada water toward the San Francisco Bay Area.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Mountain Tunnel canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T17596830 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Mountain Tunnel Context triple: [Hetch Hetchy Power System, hasPart, Mountain Tunnel]
-
A.
Bopeep Tunnel
Bopeep Tunnel is a railway tunnel in East Sussex, England, carrying the Tonbridge–Hastings line through the coastal cliffs near St Leonards.
-
B.
Bosley Tunnel
Bosley Tunnel is a historic narrowboat canal tunnel in Cheshire, England, forming part of the Macclesfield Canal navigation route.
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C.
Supai Tunnel
Supai Tunnel is a man-made passageway carved into the canyon wall along the North Kaibab Trail in Grand Canyon National Park, serving as a notable landmark and turnaround point for many hikers.
-
D.
Homer Tunnel
Homer Tunnel is a road tunnel in New Zealand’s Fiordland that provides critical access through the mountains on the route to Milford Sound.
-
E.
Galmihorn Tunnel
The Galmihorn Tunnel is a Swiss road tunnel on the A9 motorway, carrying traffic through the mountainous terrain of the Valais region.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Mountain Tunnel Target entity description: Mountain Tunnel is a major water conveyance tunnel within California’s Hetch Hetchy Power System that transports Sierra Nevada water toward the San Francisco Bay Area.
-
A.
Bopeep Tunnel
Bopeep Tunnel is a railway tunnel in East Sussex, England, carrying the Tonbridge–Hastings line through the coastal cliffs near St Leonards.
-
B.
Bosley Tunnel
Bosley Tunnel is a historic narrowboat canal tunnel in Cheshire, England, forming part of the Macclesfield Canal navigation route.
-
C.
Supai Tunnel
Supai Tunnel is a man-made passageway carved into the canyon wall along the North Kaibab Trail in Grand Canyon National Park, serving as a notable landmark and turnaround point for many hikers.
-
D.
Homer Tunnel
Homer Tunnel is a road tunnel in New Zealand’s Fiordland that provides critical access through the mountains on the route to Milford Sound.
-
E.
Galmihorn Tunnel
The Galmihorn Tunnel is a Swiss road tunnel on the A9 motorway, carrying traffic through the mountainous terrain of the Valais region.
- F. None of above. chosen
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.