It is situated to the east of the town of Beith and stands on the course of the Dusk Water that once drove the local mill.

The Haselet or Hessilhead 'Farm Town' hamlet still exists, dating from at least the 1740s judging by William Roy's map as previously noted.

Porterfield in his booklet titled 'Rambles Round Beith' relates that the name of this clachan was 'Haselet' from 'Hasslehead Hamlet' (sic), previously 'Nethertown'.

This arrangement led to small farm towns like Haselet being established with accommodation for at least four men in six to eight houses, taking practical considerations into account.

A fine example of an old well survives, thirty feet deep with a sandstone slab cover, pierced with a hole that once held the hand pump.

Hessilhead Mill has been demolished, however the circular grain kiln remnants survive, attached to the ruins of the miller's house.