Seen across Gillercomb from Brandreth and Grey Knotts, Base Brown presents its rugged western face, split by two steep gullies falling from near the 646-metre summit towards the valley floor. Each carries an unnamed gill, part of the network of mountain streams that eventually feeds Sourmilk Gill below. In wet weather the water traces bright lines down the darker rock and grass, emphasising the sheer scale of Base Brown — great scars running down a mountainside that rises abruptly above the depths of Gillercomb.

At the head of Gillercomb, the steep-sided glacial valley closes beneath a broad col linking Brandreth with Green Gable. From here Green Gable rises to 801 metres, while the massive form of Great Gable, 899 metres, towers beyond. The height also opens a remarkable view back down Gillercomb towards Ennerdale and across to the Buttermere fells — one of those places where the immense scale of the western Lakeland mountains suddenly becomes apparent.

From the rim of the Gillercomb hanging valley, the view falls steeply towards Seathwaite, where Sourmilk Gill escapes from the high ground and the pale rock of Seathwaite Slabs catches the eye below. Beyond, the Borrowdale Fells rise in softer folds, contrasting with the crags enclosing Gillercomb. It is a striking change of perspective — from the confined mountain hollow to the deep, inhabited valley of Borrowdale spreading away beneath the walker.

Looking across Gillercomb, the broad shoulder of Grey Knotts rises towards the high ground linking it with Brandreth, while the deep hollow of the valley lies enclosed below. Gillercomb was carved and deepened by glacial ice, leaving a classic hanging valley above Borrowdale, with Sourmilk Gill making the abrupt descent towards Seathwaite. From here the relationship between the high fells and the valley below is laid out dramatically — a landscape shaped by ice, then traced by water.

From the 801-metre summit of Green Gable, Base Brown stretches northwards as a long grassy ridge, descending towards the deep Seathwaite Valley. To the west, Grey Knotts runs almost parallel, with the glacial hollow of Gillercomb suspended between the two ridges. From this height its geography suddenly makes sense — summit, ridge and hanging valley seen together, with Borrowdale lying far below.

At the lip of the Gillercomb hanging valley, Sourmilk Gill suddenly loses height, breaking into a succession of waterfalls and cascades as it plunges towards Seathwaite. Beside the lower falls lie Seathwaite Slabs, smooth expanses of rock long used by climbers and boulderers. Here the geology becomes something the walker can both see and hear — water gathered on the high fells spilling noisily from the hanging valley into Borrowdale far below.

From near Stockley Bridge, Base Brown rises steeply above the trees beside Styhead Gill, its south-eastern face broken by a deep, rocky gully running towards the 646-metre summit. Opposite stands Seathwaite Fell, narrowing the view into the upper valley. Although the summit itself remains hidden, the rift draws the eye relentlessly upwards — rain and running water cutting into the fell and revealing the rugged mountain behind its gentler grassy slopes.

Beyond Stockley Bridge, the path climbs beside Styhead Gill towards the upper reaches of Borrowdale, with Taylorgill Force dropping through the crags below Base Brown. The waterfall descends in a series of rocky falls, while the Coast to Coast route climbs across the steep scree-covered slope above it on its way towards Sty Head. Here the character of the walk changes decisively — the green floor of Borrowdale is left behind as the route begins its climb into the high mountains