Campsie Linn Earthcache EarthCache
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A 300m walk along the West bank of the River Tay in Stanley (5 miles north of Perth).
Campsie Linn is the highest volume waterfall in Britain. The whole of the River Tay is forced through a narrow gap in a rock ledge fault where it gushes out into a huge boiling cauldron called the Linn Pool.
A popular place in the summer with canoeists and fishermen. Look out for the salmon leaping and for an Osprey hovering overhead.
The Ochils range of hills consist of a bed of volcanic rock in the form of a high plateau with a step southern face. The Ochil Fault, a major geological fault, separates the lavas from the carboniferous rocks and occurred some 340 million years ago.
Two major groups and ages of rocks are found in the Strathearn area of Perthshire. These are separated by the Highland Boundary Fault (HBF) which is a major crustal fracture running NE - SW across the map, and across Scotland.
To the north of the fault line lie the crystalline metamorphic rocks of Precambrian to Lower Cambrian age (older than 590Ma) of the Scottish Highlands. These contain igneous intrusions of Caledonian age.
South of the HBF are younger sedimentary rocks with lava extrusions (Lower Devonian) which form the Ochil Hills on the southern fringes of Strathearn.
The relative hardnesses of Highland metamorphic rocks, the sediments and the lavas have resulted in erosion into the 3 different landscapes of present day Strathearn: the craggy Highlands rising to 985m, the relatively flat valley floor and the modest Ochil Hills.
Where the fault line hits the river Tay the river spills through Campsie Linn, an awesome vertical waterfall that finishes at the Linn Pool, a phenomenal place reputed to the 90 feet deep! It is breathtaking and increadibly loud during the heavy winter rains, and melting snows.
In order to log this cache, please provide co-ordinates of another location where the fault line can be seen crossing Scotland via email.
Please log your visit with a photograph with yourself or your GPS to prove you have been to Campsie Linn.
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