This is actually in Devon but still feels like Cornwall. If coming from Cornwall, on the A3072, the road to Ugworthy Barrow and Ugworthy Moor is the third left after the Red Post junction. I can’t remember what it was signposted as but it did also have a brown tourist signpost (something to do with a Ceramics place a short distance up the road). Ugworthy Barrow is almost 3 kilometres up this road, in it’s own small enclosure on the bend on the road, just after a staggered crossroads.
Being in it’s own small enclosure has advantages and disadvantages. It should help it survive, but it also meant that I couldn’t find a way in and could only peer at it through the hedge and take a photo from a wall on the south side (the area being used as a bit of rubbish dump).