Ashmore parish is situated on the hills of Cranborne Chase southeast of Shaftesbury and north of Blandford Forum. The underlying geology is chalk, overlain by clay-with-flints in the south and southeast. The village, which at above sea level is the highest in Dorset, is sited on a spur of land between dry valleys which drain south and southwest. All of Ashmore parish is within the Cranborne Chase and West Wiltshire Downs Area of Outstanding Natural Beauty (AONB).
