A Myrddyn Dewey is a peak in Ireland with a height between 500m and 609m and a prominence greater then 30m.

Myrddyn Dewey

Corcog

Macklaun

Cnoc na hUilleann

Croghan Kinsella

Carran

Lackabane

Baurtregaum Far NE Top

Gullaba Hill

Aghla Beg South Top

Black Hill

Maumonght

Knockeenatoung

Eskatarriff

Silver Hill

Castle Hill

Sorrel Hill

Coomacloghane

Garraun

Annacoona Top

Slieve League

Cushnaficulla

Slieve Beg

Luggala

Bascadh

Drumnalifferny Mountain

Tievnabinnia East Top

Aghla Mountain

Knockmulanane

Doan

Cnoc Breasail

Beenatoor

Knocknabro West Top

Tooth Mountain

Coomnahorna

Slieve Foye

Buckoogh

Caherbla

Slievenaglogh

Mullaghanish NE Top

Knocknagree

Glendoo Mountain

Carn Mountain

Slieve Anierin

Knockastakeen

Bengorm

Benbrack

Aghla More

Mullaghasturrakeen

Benchoona

Bencorrbeg

Barrclashcame North West Top

Bingorms

Coomcathcun

Knockeirky

Benlettery

Slieve Gullion

Bunnacunneen

Brassel Mountain

Knocknagowan

Sugarloaf Mountain

Skregbeg

Carrigshouk

Lackawee

Mullaghclogher

Conigar

Croaghnageer

Knocknabreeda

Maulin

Caora Bhan

Oughtmore

Knockaunanattin

Sugarloaf Mtn West Top

Carran South Top

Moanlaur

Slievenashaska South Top

Gaugin Mountain

Birreencorragh South Top

Aghla Beg

Carnanelly

Knockacullion

Carran Far North East Top

Barnanageehy

Ben Beg

Knockmeal

Slievemoughanmore

Ben Goram

Brockagh Mountain

Garraun South Top

Prince William''s Seat

Mackoght

Knocknagun

Peakeen Mountain

Derryclancy

Knockrower

Dooish South East Top

Dromavally Mountain

Birreencorragh West Top

Trostan

Mullaghmore

Bucan

Myrddyn Dewey

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Corcog

Macklaun

Cnoc na hUilleann

Croghan Kinsella

Outdoor adventure