As the M6 continued north towards the Scottish border, planners were becoming increasingly concerned that the traffic levels would be so low that nobody would want to build any service stations. With breakdowns and driver tiredness being big concerns, the services were needed, they would just be hardly used. Clifton was one of those, whose traffic levels were so low it never made it off the drawing board.
The land hasn't been prepared, but because it is so flat it wouldn't have needed much work to build a service station on it. There are only two 'ghost slips', the southbound offslip and the southbound onslip, however the highway boundary (the fencing around the motorway) seems to have left room for a northbound onslip to be built too.
Between the onslip and the offslip, there appears to be a tunnel under the motorway, although it looks like it is fenced off and therefore is completley useless.
The nearest services - Tebay and Southwaite - are almost exactly 15 miles away each side. Both of those were also expected to be quiet, and over time they have been grown instead of having three services.
The services would have been twice as big as the nearby village of Clifton. A police outstation was planned to be provided here.