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Garden Shaft at the Oak Island Money Pit (AI-assisted historical reconstruction, not a photograph)
Shaft Era IV, The Show Show era, 2006 on On the map, position approximate 3 artifacts

Garden Shaft

Drilled 2010 by Lagina team, 230 ft

Depth230 ft
As reported by the source
Year2010
ByLagina team

Found in 2017 and first taken for a 19th-century searcher shaft, it was rehabilitated by Dumas Contracting from Season 10, reaching 82 feet, and its wood was dated to about 1735. In Season 11 Dumas deepened it past 95 feet, exposed timbers of a tunnel below dated as early as the 1600s, and moved the landing to 102 feet. A saltwater inflow during probe drilling near 106 feet halted the work.

Positions on the map are approximate; each dot marks the top of the hole.

What the Drill Found

  1. 0 ft
    SurfaceTop of the shaft
  2. 58 ft
    MetalTight-lining wood from the crane side with more gold than an earlier 0.13 percent sample
    The Curse of Oak Island, S10E17
  3. 65 ft
    CavitySmall cavern outside the shaft packed with timber, including apparent one-by-six planks
    The Curse of Oak Island, S11E08
  4. 80 ft
    WoodWood samples from the 80-foot mark used to redate the shaft
    around 1735
    The Curse of Oak Island, S10E04
  5. 93 ft
    WoodSix-inch probe bit bound up; filings believed to be wood on the north side; nonferrous detector signal below the floor
    The Curse of Oak Island, S10E25
  6. 95 to 112 ft
  7. 95 ft
    WoodProbe drilled below the shaft struck what appeared to be wood embedded in clay; wood from the bit kept for dating
    The Curse of Oak Island, S10E24
  8. 97 ft
    WaterSudden saltwater inflow flooded the shaft; later measured at 479 gallons per minute
    The Curse of Oak Island, S11E20
  9. 230 ft
    BottomThe deepest point on record, as reported by the source

Depth not recorded

  • –
    WaterGold detected in two water samples from the shaft
    The Curse of Oak Island, S10E01
  • –
    OtherHandmade ladder uncovered during rehabilitation
    The Curse of Oak Island, S10E15
  • –
    MetalWood from the inner lining showed 0.11 percent gold by XRF
    The Curse of Oak Island, S10E16
  • –
    OtherPart of a large barrel hoop recovered at the shaft
    The Curse of Oak Island, S10E20
  • –
    ToolLarge iron chunk in spoils, possibly an axe-handle wedge
    The Curse of Oak Island, S11E05
  • –
    TunnelSix-inch piece of wood from the first lateral drill hole, taken from the tunnel below
    C14: primary 1631-1684; 34% 1735-1803; 6.2% 1529-1556
    The Curse of Oak Island, S11E13
  • –
    TunnelTunnel reached: round log and other wood; bottom sounded hollow
    The Curse of Oak Island, S11E15
  • –
    MetalPlanks 12 to 14 inches with rounded edges, a wedge with bark, adze-marked timbers, a non-iron artifact and a shaped metal piece
    The Curse of Oak Island, S11E17
  • –
    MetalHand-wrought rose head nail from a beam; two shaped iron pieces, the smaller dated late 1400s to mid 1700s
    nail: 1600s-1700s; small iron piece: late 1400s to mid 1700s
    The Curse of Oak Island, S11E18
  • –
    TunnelProbe drilling at the bottom the previous year hit a possible flood tunnel; saltwater entered at 700 gallons per minute
    The Curse of Oak Island, S12E04
  • –
    OtherGarden Shaft
    Artifact Vault
    Garden Shaft →
  • –
    MetalBarrel hoop (iron, large)
    Artifact Vault
    Barrel hoop (iron, large) →
  • –
    WaterGold traces in water samples
    Artifact Vault
    Gold traces in water samples →

Rows are in depth order; the column on the left is the hole, and a figure between rows is the stretch with nothing logged. Depths as reported by each source.

A Searcher Shaft That Turned Out Too Old

The show reported that the Garden Shaft was found in 2017 and read, at first, as an 80-foot searcher shaft of the 19th century. That reading held until the Lagina team's water testing returned some of the highest gold readings on the island from water in and around the shaft. Wood from the lining at the 80-foot mark was then carbon dated, and the show reported a date of about 1735, roughly 60 years before the Money Pit was discovered. If that date holds, the shaft predates every recorded search. Drilling in 2022 added a second reason: boreholes to the south kept meeting wood at about 103 feet, sonar mapped a timbered tunnel trending toward the shaft, and a shallower run of wood at about 95 feet to the west appeared to pass directly beneath it.

Dumas Rebuilds It, Eight Feet at a Time

Dumas Contracting, a mining contractor, arrived in December 2022 to drain the shaft, remove the backfill, reline it with waterproofed timber, grout the surrounding ground, and set platforms every eight feet to about 80 feet. Three weeks in, the Nova Scotia government stopped the work, ruling that it needed mining permits rather than the rehabilitation authorization Dumas held. Work resumed in February 2023 with a 109-ton crane and a three-ton hammer grab, and by May 2023 the shaft stood rebuilt to 82 feet.

Ninety-Five Feet and a Floor of Timbers

Permits to deepen the shaft came through in Season 11, in late 2023. Water entered near 87 feet, a storm put 30 feet of water in the shaft, and for weeks an inflow at about 66 feet, where photographs showed a small cavern packed with old planks, kept the crew from going deeper. Dumas sealed the voids behind the wall with expanding urethane and Geofoam and regained control early in 2024. The show reported the tunnel reached at 95 feet, and the shaft was carried on to 99 feet to expose it. Only the floor timbers survived; no roof or side members were found in place, and the team concluded the tunnel had collapsed or been partly dismantled. Carbon dating of the tunnel wood, as reported in Season 11, gave a primary range of 1631 to 1684, with a 34 percent probability of 1735 to 1803. The landing was then moved down to 102 feet, with a target of 106 feet before horizontal drilling.

Salt Water at 106 Feet

Probe drilling at the 106-foot level met a sudden rush of salt water. The Dumas crew got out safely, and Rick Lagina, who with his brother Marty Lagina has led the search since 2006, tasted the water and confirmed it was salty. The show gave the inflow as 479 gallons per minute in Season 11 and as 700 gallons per minute when it looked back in Season 12. Pumping sand-laden water threatened the shaft, and horizontal drilling was abandoned. A borehole eight feet northwest of the shaft then came up through fine sand, and Craig Tester, the engineer and partner in the Lagina venture, argued that such sand could not pass 479 gallons a minute and that the water must have an outside source, possibly a flood tunnel. Seasons 12 and 13 worked around the shaft rather than in it: dye injected 200 feet down in the solution channel to the south turned up at 105 feet near the shaft, which Ian Spooner, the geoscientist who runs the team's water testing, read as metals being carried north from deep in the channel.

What the Record Supports

The record supports a timber shaft whose wood was dated by carbon to about 1735, a tunnel beneath it with timbers dated as early as the 1600s, gold traces in water and wood, and a saltwater inflow at 106 feet strong enough to stop the work. The dates are carbon dates reported on the show, each a probability range rather than a single year. The record does not say who dug the shaft, where the tunnel led, or whether the water came through a built flood tunnel or through natural channels in the sand and bedrock.

Where It Sits

Connected to Garden Shaft

Sources

  • Drilled by Lagina team / Dumas Mining
  • The Curse of Oak Island, S10E17 (episode summary)
  • The Curse of Oak Island, S11E08 (episode summary)
  • The Curse of Oak Island, S10E04 (episode summary)
  • The Curse of Oak Island, S10E25 (episode summary)
  • The Curse of Oak Island, S10E24 (episode summary)
  • The Curse of Oak Island, S11E20 (episode summary)
  • The Curse of Oak Island, S10E01 (episode summary)
  • The Curse of Oak Island, S10E15 (episode summary)
  • The Curse of Oak Island, S10E16 (episode summary)
  • The Curse of Oak Island, S10E20 (episode summary)
  • The Curse of Oak Island, S11E05 (episode summary)
  • The Curse of Oak Island, S11E13 (episode summary)
  • The Curse of Oak Island, S11E15 (episode summary)
  • The Curse of Oak Island, S11E17 (episode summary)
  • The Curse of Oak Island, S11E18 (episode summary)
  • The Curse of Oak Island, S12E04 (episode summary)
  • Artifact Vault: Money Pit area
  • Artifact Vault: Garden Shaft
  • Artifact Vault: water samples from the Garden Shaft
  • Positions and depths: see how we know this on the Money Pit Map.