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Grinan Hill

Fort (Period Unassigned)

Site Name Grinan Hill

Classification Fort (Period Unassigned)

Alternative Name(s) Grinnan Hill

Canmore ID 25262

Site Number NN80NW 6

NGR NN 8338 0936

Datum OSGB36 - NGR


Ordnance Survey licence number 100057073. All rights reserved.
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Administrative Areas

  • Council Perth And Kinross
  • Parish Ardoch
  • Former Region Tayside
  • Former District Perth And Kinross
  • Former County Perthshire

Archaeology Notes

NN80NW 6 8338 0936.

(NN 8338 0936) Ancient Earthwork (NAT).

OS 6"map, (1958)

A small native promontory fort (Crawford 1949) with a triple line of defence partly ramparted and trenched, partly terraced, the rough oval shape being completed by steep slopes.

D Christison 1900; O G S Crawford 1949.

An Iron Age fort as described by Crawford and Christison. A later field bank and field override and obliterate the defences on the NE sector. The site is wooded and obscured by undergrowth.

Re-surveyed at 1/2500.

Visited by OS (W D J) 22 May 1967.


Field Visit (12 June 1957)

This site was included within the RCAHMS Marginal Land Survey (1950-1962), an unpublished rescue project. Site descriptions, organised by county, are available to view online - see the searchable PDF in 'Digital Items'. These vary from short notes, to lengthy and full descriptions. Contemporary plane-table surveys and inked drawings, where available, can be viewed online in most cases - see 'Digital Images'. The original typecripts, notebooks and drawings can also be viewed in the RCAHMS search room.

Information from RCAHMS (GFG) 19 July 2013.

Note (15 December 2014 - 18 May 2016)

This fort is situated on a wooded promontory formed by the escarpment overlooking the Keir Burn on the SW side of Braco. The defences comprise three ramparts with external ditches drawn in an arc across the N and E approaches to form an oval enclosure, though the inner has been reduced to little more than a scarp, and all three have been obliterated in the central sector of the arc. The only recorded measurements of the interior are supplied by David Christison, who estimated it at about 60m by 50m (0.24ha). Likewise, Christison provides the only observation of an entrance, placing it on the E along the S margin of the promontory, though both his (1900, 54-5, fig 15) and General Roy's earlier plan (1793, pl xxxi) also appear to show a trackway descending obliquely down the escarpment on this flank of the promontory. The interior is featureless.

Information from An Atlas of Hillforts of Great Britain and Ireland – 18 May 2016. Atlas of Hillforts SC2630


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