The Brown Gelly cairn seems to sit on top of the blocking stone when viewed from the row at SX2235377803.
East Moor is a single stone row measuring 560m long, including at least 23 widely spaced medium and large-sized stones situated in a col between high ground to the north and south. The row is orientated NNE to SSW and unusually for a single row has a large blocking stone at the SSW end. The row has noteworthy visual links with a cairn on Brown Gelly which seems to be its focus. There are several cairns, a ring cairn, stone circle, stone setting and prehistoric settlements in the vicinity.
Simplified plan of the East Moor stone alignment (Source: Johnson, N. and Rose, P., 1994, 32).