Back to the Eli Simpson film rushes page: In 1953 The British Speleological Association initiated a project under the leadership of Eli Simpson to make a 16 mm film about limestone caves in the Yorkshire Dales called "Birth of a Yorkshire River". They had a number of sessions filming both on the surface and underground, experimenting with both monochrome and Kodachrome film. The project was eventually abandoned, but the rushes were discovered in the Eli Simpson Archive held by the BCRA. This set of monochrome rushes show a caver descending and ascending the crater of Hull Pot on rope ladder, lifelined from the surface by three men.