Tumble Down Falls


Semi-Retired; more time for trains.
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If you have an iPhone there is a great app to measure gradients.,Carpenter. If not iPhone is there an alternative for other Smart Phones?
Jon tried the app when I first started on outside railway, and considered it quite unreliable, the short length and a small piece of grit etc, my second iPhone was no better. A bit like the compass, something not to be relied upon.