The ridge northward to Great Carrs is named Top of Broad Slack, Broad Slack being a ferociously steep grass slope climbing out of the Greenburn valley between neighbouring crags. The ridge is a grassy plateau with a pronounced downward tilt to the west. The eastern edge is precipitous, curving around the head of Greenburn. On the journey to Great Carrs the path passes a memorial. This is the site of a wartime aircrash and bears the sad remains of a Royal Canadian Air Force Handley Page Halifax bomber. The undercarriage, together with a wooden cross and memorial cairn lies on the top of the ridge with the rest of the wreckage spread down Broad Slack. In his guidebook The Southern Fells Alfred Wainwright suggests that the plane approached from the west, failed to clear the ridge and tumbled down the other side. In fact, the wrecked aircraft came to rest on the western slope; the majority of the wreckage was subsequently pushed over the edge of broad slack by the RAF salvage crew, in order to make it less prominent and reduce the likelihood of overflying pilots spotting the wreckage and repeatedly reporting the crash. An engine and propeller from the aircraft are preserved at the Ruskin Museum in Coniston. The tilted plateau of the north ridge is triangular in plan, narrowing to a point at Fairfield in the west. This is the col between Swirl How and the ridge's western outlier, Grey Friar. To the north of this ridge are long slopes leading down to the Duddon at Wrynose Bottom.