Rammer Cleugh (*) and the meltwater channel systems on the northern flanks of the Lammermuirs
A simplified version of Brian Sisson's (1958) diagram of this meltwater channel system
The entrance of Rammer Cleugh 1. Rammer Cleugh 2. Sub-glacial chute channel 3. Possible esker
The up-down long profile of Rammer Cleugh, redrawn from Jackes (1976)
The exit of the Rammer Cleugh channel. 1. Rammer Cleugh 2. Kame terraces 3. Meltwater channel
Significance: this fine set of landforms created by glacial meltwater was first described in 1866. Detailed mapping by Brian Sissons in 1958 led to a fundamental revision of the origin of meltwater channels in Scotland (Gordon, 1993).
This channel was described by Kendall and the Bailey (1908) as the finest example of a dry valley in the county. The channel is very impressive, being long, steep-sided and 60 m deep in places and carved through solid rock. The original valley sides would have an even steeper, being free from the present scree, which mantles part of the slopes. It is a winding channel with an up and down profile, indicating a former powerful flow of meltwater moving under subglacial pressure in an ice tunnel.
At the channel exit lies a series of kame terraces. These terraces probably developed as gravel-filled ponds and cavities at the ice margin and beneath the thinning ice. There is also an esker on the channel floor. Worthy of note is the fan built by another Rammer Cleugh burn - an example of a corrom, an old term for a delta watershed, here formed by the tributary flowing onto level-floored glacial drainage channel and depositing bed load in a fan.