excavation of 58 triel trenches following desk based assessment and geophysical survey An Archaeological Evaluation by Trial Trenching was carried out by MAP Archaeological Practice Ltd., on land off Westerton Road and Haigh Moor Road, West Ardsley, West Yorkshire, prior to the commencement of a residential development with associated infrastructure. The site lies in a previously undeveloped area with archaeological features dating to the prehistoric to the Medieval period recorded within the vicinity. The Evaluation by Trial Trenching, which followed a Desk Based Assessment and Geophysical Survey, revealed a single shallow gully which produced no dating evidence, although environmental data suggests post-Medieval or modern origin. No features relating to former mining practices in the area were identified