The townland of Mullanasilla is in the parish of Kildarton in Armagh County. It is labelled number 16 on the map.

Paterson (Armachiana, Vol. 16, p.25) notes:

The Environment and Heritage Service Sites and Monuments Record (2002) notes the following in this townland:

A large tree ring of the 18th or 19th Centuries in an enclosure of uncertain period
SMR NO: ARM 012:028
GRIDREF: H91754694
"This is a large tree ring, planted very closely with mature conifers. It comprises a steep faced platform with a slight outer ditch 2m wide and 0.6m deep. The platform stands 1.4m above the surrounding ground level."

An enclosure of uncertain period, possible an Early Christian rath.
SMR NO: ARM 012:029
GRIDREF: H92164673
"Within the small field associated witha deserted steading on a gentle NE- facing slope. The site of a small circular "Fort" is marked on an unpublished OS 6” map of 1860, but scarcely any remains are now recognisable. A slight curve in the track may indicate the perimeter on the W, and a shallow scarp in the fields to the E of the track may also reflect the outline of the site.

Rath of the Early Christian Period.
SMR NO: ARM 012:037
GRIDREF: H91874738
"In cultivated ground on the top of a drumlin. The site has been almost completely obliterated, and all that remains is a low, level, roughly circular platform raised 0.4-1m above the surrounding ground. Only a short length of the NW side is clearly defined, preserved below a hedge boundary. Here, a ditch, 2.75m wide & 0.9m deep can also be recognised, but this may have been recently re-cut. The SW perimeter is marked by a slight scarp, but the E side no longer survives. It is c.43m in diam. N-W."

PRONI records: D.821 (Rent account re land, Wylie family.); OS/6/2/12/1 (Surveyed 1835. Engraved 1835.); OS/6/2/12/2 (Surveyed 1835. Revised 1860. Engraved 1860 (Stat file copy).); OS/6/2/12/3 (Not Received.); OS/6/2/12/4 (Surveyed 1835. Revised 1905-06. Reprinted 1931-1947. Published 1931 with mss markings in red and stamped references 2566, 2567, 2573.); OS/6/2/12/5 (Surveyed 1906. Revised 1948. Levelled 1888 and 1906. Levels revised 1949. Published 1953. (2 copies) - 1 being reprint 1953, 56, 61).); OS/6/2/13/1 (Surveyed 1834-35. Engraved 1835.); OS/6/2/13/2 (Surveyed 1834-35. Revised 1860. Engraved 1863 (Stat file copy).); OS/6/2/13/3 (Surveyed 1834-35. Revised 1905-06. Published 1930.); OS/6/2/13/4 (Surveyed 1905-06. Revised 1954-55. Levelled 1888 and 1892 and 1902, 1905-1906. Levels part revised 1948. Published 1958. (2 copies).); VAL/1B/230 (1st valuation records.); VAL/12B/10/25A, VAL/12B/10/25B, VAL/12B/10/25C, VAL/12B/10/25D, VAL/12B/10/25E (Valuation annual revision list.); VAL/2B/2/28C (Griffith valuation list.).

Parish map with townlands