Maud Heath, who owned land and houses both in Langley Burrell and in Chippenham, was concerned that the people of Bremhill, Foxham, Tytherton and the Langley area had a difficult passage through marshy and flooded land to Chippenham Market. On 12th June 1474 she made a deed of gift of land and houses worth £8 in rents per year to a trust to build a causeway from Wick in Bremhill to Chippenham. This 4.5 mile causeway of cobblestones passed over land at Kellaways that was a swamp during the winter months. In 1698 the Maud Heath Trust erected the 12 foot high monument by the river at Kellaways. This features a three faced block sundial with Latin inscriptions.
The Transcription as presented by Kay Taylor in ';Dry Shod to Chippenham'; reads:
"To the memory/Of the worthy MAUD/HEATH of Langle But/-rell Widow/Who in the year/of Grace 1474 for the/good of Travellers did in/Charity bestow in Land/and houses about Eight/pounds a year forever to/be laid out on the High/ways and Causey lead/ing from Wick Hill to/Chippenham Clift./This piller was/set up by the feoffees in/1698/Injure me not"