Courses, Map & Terrain

Terrain: The competition area lies in the upper Glenmacnass river valley, and covers roughly five square kilometres. One side of the valley is forested with thickets of young pine and scattered trees; the other is open hillside. There is considerable rock feature throughout. The valley is divided by a stream (the upper section of the Glenmacnass river) and is crossable by foot.  The terrain underfoot varies from rough heather to grass, and in general is quite runnable.  There are some paths in the wooded part of the competition area, but no paths in the open hillside. The valley sides are moderately steep.  The rock feature and intricacy of vegetation make the area technically challenging.

Crossing Points: The forested area is surrounded by a wire fence, which is 60-80 cm in height. One crossing point is marked near the end of all courses, which competitors may optionally take. When crossing any fences competitors should take care not to cause damage.

Courses: Courses 1 – 8 cross the stream that divides the valley. If weather conditions cause the stream to rise then compulsory manned crossing points may be introduced.  If necessary, details of this will be posted on the event web-site and the orienteering egroup prior to the event.  Course 12 has one taped route between two controls.

Carraic Na Seabhac map extract

Carraic Na Seabhac
map extract

Map: All Courses are planned on a new map surveyed 2010-2011 by Pat Healy using GPS. The survey is based on photogrammetry by Stirling Survey.  A map scale of 1:15,000 is used for courses 1 and 2, and a scale of 1:10,000 is used for all other courses.  The contour interval is 5m. Generally boulders less than 2m in height are marked on the map with the small boulder symbol. The large boulder symbol is used for boulders larger than 2m in height. The rock pillar symbol (black area symbol) is used for very large boulders.  In areas of pervasive rock detail boulders which seem small in relation to neighbouring boulders are not generally mapped.  Crags are mapped both with, and without tags. The dark green screen (fight) is used to mark pine thickets and young plantation. The semi-open screen is used to map scattered trees. Lone trees are marked with a green dot symbol.

Note: A ride marked with the narrow ride symbol, used extensively by courses 11 and 12, changes width in places and also merges with open terrain. It will be marked on the ground by red and white tape every 50m.

Course Details: Lengths (Km) and Climb (metres):

Course Class Scale Length Climb
1 M21E 1:15,000 10.25 330
2 W21E 1:15,000 7.73 265
M35L
3 M21L 1:10,000 6.96 220
M20
M40L
4 M18 1:10,000 6.54 210
M45L
M50L
5 W21L 1:10,000 5.81 210
W20
W35L
M16
M55L
6 W18 1:10,000 5.37 170
W40L
W45L
M60L
M40S
M21S
7 W16 1:10,000 4.80 155
W50L
W55L
M65L
M50S
8 W60L 1:10,000 3.97 135
W65L
M70L
M75L
M60S
W40S
W21S
9 W70L 1:10,000 2.59 60
W75L
M80L
W80L
W50S
W60S
10 M14 1:10,000 3.37 110
W14
Lt-Green
11 M12 1:10,000 2.05 55
W12
12 M10 1:10,000 1.65 30
W10
Yellow

There will be two entry on the day courses of approximately Yellow (for beginners) and Light Green standard (for competitors with experience) – details at the Assembly Area.

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