Joint Level

Reference to Plan 5-7
Past Primgap, the level is called Joint Level. This level has, in some parts, fallen in and the water is stopped, but a few years since, the Cockhill Company made a communication between it and Primgap Level, which lets off the water but not low enough, as Primgap loses more level in driving than the Joint Level. In consequence of this difference of level the water still stands in the Joint Level to the height of the roof or nearly.

In making the communication some good ore was found, which was wrought under the level till the miners were prevented from sinking any deeper by the water.

Whole length to Appletreewick Manor 23c 90l or 262fa.