Numbers 13:24

And he called that place the valley of Eshool, on account of the cluster of grapes which the sons of Israel cut off from there.

Treasury of Scripture Knowledge

Summary

The place was called the brook Eshcol, because of the cluster of grapes which the children of Israel cut down from thence.

Bible References

Brook

Numbers 13:23
And they will go up to the valley of Esheol, and will cut off from there a branch and one cluster of grapes, and they will lift upon a rod upon two; and from the pomegranates, and from the figs.