# Upper Flood Swallet

- **Country:** United Kingdom
- **Coordinates:** 51.298850, -2.710370
- **Depth:** 110m
- **Access:** Leader controlled by Mendip Caving Group; experienced cavers only
- **Length:** 4.1km
- **Survey:** [http://mendipcavinggroup.org.uk/sections/upperflood/uf_500.htm MCG Upper Flood Survey 2012]
- **Geology:** Limestone
- **Location:** Charterhouse, Somerset, UK
- **Registry:** Mendip Cave Registry
- **Discovery:** 3 October 1968
- **Difficulty:** Extensive system with tight strenuous sections
- **Grid Ref Uk:** ST 50570 55765
- **Entrance Count:** 1

Upper Flood Swallet which was originally known as Blackmoor Flood Swallet, is an exceptionally well-decorated cave near Charterhouse, in the carboniferous limestone of the Mendip Hills, in Somerset, England. The cave is part of the Cheddar Complex SSSI.

![Photo of Upper Flood Swallet](https://upload.wikimedia.org/wikipedia/commons/3/3b/Neverland._Upper_Flood_Swallet_%2C_Charterhouse_%28geograph_4144542%29.jpg)

**Source:** https://en.wikipedia.org/wiki/Upper_Flood_Swallet (Wikipedia, CC BY-SA)