The summit plateau of Kirk Fell assumes a 'figure of eight' shape in plan, the narrow waist squeezed between Illgill Head and Baysoar Slack. The highest ground is to the west, while a subsidiary top occupies the other section. Kirk Fell East Top has sufficient prominence (34 m, 112 ft) to qualify as a Hewitt in its own right. Between the summits is Kirkfell Tarn, actually two small tarns. The deeper pool is an oval, while the other has an indented outline, reminiscent of Sprinkling Tarn on Seathwaite Fell in miniature.