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Details of Porth Island

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Porth IslandNo. 18756
Height:31.8m / 104ft
Prominence/Drop:31.8m / 104ft
Country:England
County:Cornwall (CoU)
Grid Ref:SW 82415 63128
Latitude:50.420000
Longitude:-5.060000
Hill Area(s):40: Cornwall & Devon
Classification:0, SIB, Tu
More details
More Details for Porth Island
Parent Hill:None
Summit feature:outcrop
Col:0.0m / 0ft (Grid ref: Sea)
Map:OS Landranger: 200
OS Explorer: 104 106
Map of nearby hills
Map legend
Legend
Height Purple icon for hills greater than or equal to 1200m high≥1200m
Red icon for hills between 1100m & 1200m high≥1100m
Orange icon for hills between 1000m & 1100m high≥1000m
Yellow icon for hills between 900m & 1000m high≥900m
Dark green icon for hills between 800m & 900m high≥800m
Green icon for hills between 700m & 800m high≥700m
Indigo icon for hills between 600m & 700m high≥600m
Violet icon for hills between 500m & 600m high≥500m
Dark violet icon for hills less than 500m high<500m
Prominence Icon for hills greater than or equal to 600m prominence (The definition of a P600 or 'major').≥600m
Icon for hills greater than or equal to 150m prominence (The definition of a Marilyn)≥150m
Icon for hills greater than or equal to 100m prominence (The definition of a Hump)≥100m
Icon for hills greater than or equal to 30m prominence (Definition for several hills, primarily Tumps)≥30m
Icon for hills less than 30m prominence<30m More
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