A second tributary of the Glenderamackin, Bullfell Beck, runs parallel a little to the north, its source being directly beneath the summit of Bowscale Fell.
The heads of the two valleys are divided by a truncated east ridge, The Tongue, which sports a top at 1,814 feet (553 m) at the far end.
A second, longer eastern ridge runs out to the north of Bowscale Fell, forming the northern wall of Bullfell Beck.
[1] Bowscale Tarn was a popular tourist attraction in Victorian times, visitors being brought by pony to observe its wild and moody setting.
[2][3] The view of Blencathra and Sharp Edge is excellent, together with a surprising vista of the North Western Fells through the Glenderaterra gap.
The easiest follows a gently rising track to the depression at the head of Bannerdale, while a variation is to turn off and climb steeply up the terminal slope of The Tongue.
[2][3] If a much longer walk is required, the ridge between Bowscale Fell and Bannerdale Crags can be reached from the Caldew Valley to the west.