Chapel Ordnance Survey Benchmarks

Parishoners may have noticed over the years, some curious marks and a plate along the bottom edges of our Chapel.

Apparently these are called benchmarks and are to do with Ordnance Survey but are no longer in use. I will leave the reader to do the usual google searches for more info.

The first is at the entrance gate to the Chapel at the corner where apparently a stairway led to an underground store ( So I am told)

The second is a metal plate bearing the letters OS and BM with the number 3578. It is at the East side main altar corner near the distinctive Fr O'Kane grave at the roadside.

The parish does not have any info or history about these marks or when they were placed on the chapel.

The story behind the benchmarks hiding in plain sight around Ireland - University of Limerick

Find your Benchmark - Anne Karoline Distel - Irish Farmers Journal