UC861Z is a 5 mile time trial course. Designed as a CATI course. Starts in Sutton Benger at start of UC861 and goes along B4069 to Dauntsey. Turn left and follow road towards Great Somerford. Take care at S Bend by Dauntsey Park House. Finish by farm field gates 3-400 yds past Dauntsey Park House Bridge.
CTT Course details are at: https://www.cyclingtimetrials.org.uk/course-details/uc861z