Thursday, 19th August 2010

 

Walk: Clapham, Norber Erratics, Thwaite Scars, Sulber Gate, Wharfe, Austwick, Clapham
Start Point: Riverside, Clapham Grid Ref: SD 745 693
Distance: 12.3 miles Ascent: 2,100 feet
Weather: Mainly dry and sunny
Accompanied by:

Sheila

Comments: After leaving the rocky track and bridges of Thwaite Track behind, we quickly climbed up to the boulders known as 'Norber Erratics'. We spent some time exploring the  various boulders, marvelling at their size and positions on the younger limestone rocks. Eventually dragging ourselves away we continued up to Thwaite Scars and across to Sulber Gate. A brief stop gave time to check out Thieves Moss and the paths across Moughton Scars, but we decided to take a slightly higher, and grassy, route to the path from Sulber Nick. After heading south for a short time we followed the path down into Crummock Dale and on to Wharfe. A short road walk then took us into Austwick where we found a convenient bench for an afternoon stop. We were then treated to another pleasant grassy walk across the fields to Clapham.

 

Scroll down to see photos of the walk

Leaving Clapham by the church

 

Looking south from Robin Proctor's Scar

 

The Norber Erratics . . .

 

 are glacially-transported Silurian sandstone boulders.

 

They were eroded from cliffs . . .

 

1km away to the north in Crummack Dale . . .

 

 and were deposited at Norber on Carboniferous limestone . . .

 

when the ice melted about 15,000 years ago.

 

Some of the larger erratics have protected the limestone beneath them . . .

 

while the surrounding surface has slowly been dissolved away by acid soil-water.

 

These erratics now rest on upstanding blocks of limestone . . .

 

known as pedestals, some of which reach 60cm in height.

 

Sheila inspects a group of boulders . . .

 

and I add perspective to a single boulder

 

Heading away from the boulders . . .

 

there are views over to Moughton

 

and the limestone escarpments

 

From Thwaite Scars, Ingleborough is just touching the cloud layer

 

Moughton Scar where red and green whetstone lay completely flat

 

We make our way above the upper escarpment

 

Another potential member?

 

Ingleborough just catches the sun in the distance . . .

 

and Pen-y-Ghent lies in the opposite direction

 

The easy green footpath descending into Crummack Dale from Moughton Scars

 

A couple of rock climbers - thinking about the descent . . .

 

one quickly makes it to the bottom . . .

 

while the other takes a more leisurely descent

 

Looking across to Robin Proctors Scar

 

A Balwen Mountain sheep . . .

 

 somewhat larger than the local variety . . .

 

On the precipice!

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