Interlocking Spurs: Why the Thames Doesn't Have Them (And Where to Find Them)

No, the River Thames does not exhibit interlocking spurs. This classic fluvial landform requires specific conditions the mature, lowland Thames simply doesn't meet.

What Are Interlocking Spurs?

In youthful, upland rivers, the channel winds between resistant rock ridges (spurs) projecting from valley sides. Because the river lacks lateral erosion power, it cannot truncate the spurs—they remain as interlocking, zigzag ridges alternating left/right, like a zipper.

Why the Thames Lacks Them

Thames Landforms Instead

• Meanders (with cutoffs → oxbow lakes)
• Floodplain (levees, backswamps, yazoo tributaries)
• Terraces (former floodplains: Taplow, Boyn Hill, Shepperton)
• Tidal influence to Teddington Lock (estuarine)

Where to See Classic Interlocking Spurs (UK)

• River Severn – Ironbridge Gorge (Shropshire)
• River Wye – Symonds Yat (Herefordshire)
• River Tees – High Force / Low Force (Durham)
• River Derwent – Lathkill Dale (Peak District)
• Scottish Highlands – countless examples (e.g., Glen Coe tributaries)

Key Takeaway

Interlocking spurs = youthful river cutting down. Thames = old river spreading out. Different chapters in a river's life.