This painting was made in response to Frost's experience of landscape after he went to Leeds to take up a fellowship in the 1950's. Whilst living in St Ives he had characterised the Cornish peninsula as a place, 'where you can stand like a giant above the landscape'. The Yorkshire Dales were more imposing, and their dramatic scale is echoed in 'Yellow Triptych'. This painting creates the sensation of a huge space in which forms float freely before the viewer. Like many artists, Frost was aware of American abstract painting. In his own work he gradually established a repertoire of strong recurring images derived from signs, flags and other forms.