| MORTXE 4 | Túmulo | Ollaran | SALDISE | Exacta (~25m) | | | |
| MORTXE 5 | Túmulo anular | Ollaran | SALDISE | Exacta (~25m) | | | |
| MORTXE 6 | Túmulo anular | Ollaran | SALDISE | Exacta (~25m) | | | |
| MORTXE 1 | Túmulo | Ollaran | SALDISE | Exacta (~25m) | | | |
| MORTXE 1 | Túmulo anular | Ollaran | SALDISE | Exacta (~25m) | | | |
| MORTXE 4 | Túmulo anular | Ollaran | SALDISE | Exacta (~25m) | | | |
| MORUBE | Dolmen | Araba | SIERRA DE ENTZIA | Exacta (~25m) | | | |
| MORUBE | Campo tumular | | SIERRA DE ENTZIA | Aproximada (~200m) | | | |
| MOTTO | Dolmen | | SEINGAITZU | Exacta (~25m) | Nahiko egoera onean | | |
| Motxene | Túmulo | | ARALAR | Exacta (~25m) | | | |
| Motxope | Túmulo | Goñerri | ANDIA | Exacta (~25m) | | | |
| MOTXOPE | Dolmen | Goñerri | ANDIA | Exacta (~25m) | | | |
| MOTXORROKO LEPOA | Menhir | Nafarroa | BAIGURA - SALAZAR | Exacta (~25m) | | | |
| MOTXOTEGI | Túmulo | Araba | MONTE GORBEA | Exacta (~25m) | Nahiko egoera onean | | |
| MOTXOTEGI 2 | Túmulo | Bizkaia | MONTE GORBEA | Exacta (~25m) | Nahiko egoera onean | | |
| Motzeneko Txabola II | Túmulo anular | | ARALAR | Exacta (~25m) | | | |
| Motzeneko Txabola III | Túmulo anular | | ARALAR | Exacta (~25m) | | | |
| Motzeneko Txabola IV | Túmulo anular | | ARALAR | Exacta (~25m) | | | |
| Motzeneko Txabola V | Túmulo anular | | ARALAR | Exacta (~25m) | | | |
| MOUDANG | Túmulo | Hautes-Pyrénées | | Exacta (~25m) | Oso kaltetuta | | |
| MOZKORDI | Dolmen | Nafarroa | ARALAR | Aproximada (~200m) | | | |
| MUGAGA | Túmulo anular | Nafarroa | ANDIA | Exacta (~25m) | | | |
| MUGALARRIBEL | Fondo de cabaña | | ANDIA | Exacta (~25m) | | | |
| MUGALARRIBEL 1 | Túmulo anular | | ANDIA | Exacta (~25m) | | | |
| MUGALARRIBEL 2 | Túmulo anular | | ANDIA | Exacta (~25m) | | | |
| MUGALOSE | Menhir | Oiartzun | OIARTZUN | Aproximada (~200m) | Oso kaltetuta | | |
| MUGARRI | Dolmen | Nafarroa | URKIAGA – ADI | Exacta (~25m) | | | |
| Mugarri Haundi | Menhir | Araitz | ARAITZ | Exacta (~25m) | | | |
| MUGARRIAUNDI | Menhir | Oñati, Donemiliaga | ELGEA - ARTIA | Exacta (~25m) | Egoera onean | | |
| MUGARRILUZ | Túmulo anular | Nafarroa | ANDIA | Exacta (~25m) | Oso kaltetuta | | |
| MUGARRILUZE | Menhir | Gipuzkoa | ELGEA - ARTIA | Exacta (~25m) | Egoera onean | | |
| MUGARRITXURIETA | Túmulo | Etxalar | ATXURI - ESKISAROI | Exacta (~25m) | Oso kaltetuta | | |
| MUGARRITXURIETA | Cromlech | Etxalar | ATXURI - ESKISAROI | Exacta (~25m) | Oso kaltetuta | | |
| MUGARTXONDOA | Túmulo | Ollaran | SALDISE | Exacta (~25m) | | | |
| MUGARTXONDOA 1 | Túmulo anular | Ollaran | SALDISE | Exacta (~25m) | | | |
| MUGARTXONDOA 2 | Túmulo anular | Ollaran | SALDISE | Exacta (~25m) | | | |
| Mugartxondoa 3 | Túmulo anular | | SALDISE | Exacta (~25m) | | | |
| Mugartxondoa 4 | Túmulo anular | | SALDISE | Exacta (~25m) | | | |
| MUGASORO | Dolmen | Nafarroa | ARITZ - BELATE | Exacta (~25m) | | | |
| MUGERRIKO GAÑA | Cromlech | Bera | LARRUN | Exacta (~25m) | Oso kaltetuta | | |
| MUGERRIKO GAÑA | Túmulo | Nafarroa | LARRUN | Exacta (~25m) | Oso kaltetuta | | |
| MUGI 3 | Dolmen | Urruña | XOLDOKOGAÑA - IBARDIN | Exacta (~25m) | Oso kaltetuta | | |
| MUGI 5 | Túmulo | Urruña | XOLDOKOGAÑA - IBARDIN | Aproximada (~200m) | Oso kaltetuta | | |
| Mugi 6 | Túmulo | | XOLDOKOGAÑA - IBARDIN | Exacta (~25m) | Oso kaltetuta | | |
| MUGI I (hego) | Dolmen | | XOLDOKOGAÑA - IBARDIN | Exacta (~25m) | Oso kaltetuta | | |
| MUGI II (ipar) | Dolmen | | XOLDOKOGAÑA - IBARDIN | Exacta (~25m) | | | |
| MULHEDOI | Dolmen | Larraine | ERROIMENDI - BINBALET | Aproximada (~200m) | Oso kaltetuta | | |
| MULISKO GAINA | Cista | | ONDDI - ADARRA - MANDOEGI | Exacta (~25m) | Nahiko egoera onean | | |
| MULISKO GAINA | Menhir | | ONDDI - ADARRA - MANDOEGI | Exacta (~25m) | | | |
| MULISKO GAINA | Cromlech | Gipuzkoa | ONDDI - ADARRA - MANDOEGI | Exacta (~25m) | Oso kaltetuta | | |
| Multibizkar | Menhir | | LA SOLANA | Exacta (~25m) | | | |
| MUÑAAN | Dolmen | Gipuzkoa | ATAUN - BURUNDA | Exacta (~25m) | | | |
| MUNAIN | Túmulo | Aia | ERNIO | Exacta (~25m) | | | |
| MUNARRIKO LANDA 1 | Dolmen | Bizkaia | MUNARRIKO LANDA | Exacta (~25m) | | | |
| MUNARRIKO LANDA 2 | Dolmen | Bizkaia | MUNARRIKO LANDA | Exacta (~25m) | | | |
| MUNAUTZ | Dolmen | Baztan | SOALAR – AUTZA | Exacta (~25m) | | | |
| MUÑAZORROTZ TXIKI | Túmulo | | BRINKOLA - ZEGAMA | Exacta (~25m) | Oso kaltetuta | | |
| MUNDDURRU | Dolmen | Nafarroa | ALBA - KINTO | Exacta (~25m) | | | |
| MUNERRE | Cromlech | Oiartzun | OIARTZUN | Exacta (~25m) | | | |
| MUNHOGAIN | Cromlech | | MUNOA - ADARZA | Aproximada (~200m) | | | |
| MUNJOZURI | Túmulo | Bizkaia | ILUNTZAR | | | | |
| MUÑOBIL | Túmulo | | BELABIETA (Uzturre - Ipuliño) | Exacta (~25m) | Egoera onean | | |
| MUÑOBIL II | Túmulo | | BELABIETA (Uzturre - Ipuliño) | Exacta (~25m) | Oso kaltetuta | | |
| MUNTTO | Menhir | Gipuzkoa | ONDDI - ADARRA - MANDOEGI | | Nahiko egoera onean | | |
| MUNTTO | Cromlech | Gipuzkoa | ONDDI - ADARRA - MANDOEGI | Exacta (~25m) | Oso kaltetuta | | |
| MUNUXKETA (Oronbor) | Fondo de cabaña | Nafarroa | ABARTAN - SAIOA | Exacta (~25m) | | | |
| MURKHUILLAKO LEPOA | Cromlech | | BISKARTZU - ORGANBIDESKA | Exacta (~25m) | | | |
| MURKURUKO ARRIPILA | Dolmen | Nafarroa | ARALAR | Exacta (~25m) | | | |
| MURKURUKO ARRIPILA | Fondo de cabaña | | ARALAR | Exacta (~25m) | | | |
| Murruta | Cista | Gipuzkoa | IGORIN - AKOLA | Exacta (~25m) | | | |
| MURUGIL I | Túmulo | Aia | PAGOETA - MEAGA | Exacta (~25m) | Oso kaltetuta | | |
| MURUGIL II | Túmulo | Aia | PAGOETA - MEAGA | Exacta (~25m) | Oso kaltetuta | | |
| Mustillogorri | Túmulo | | ANDIA | Exacta (~25m) | | | |
| MUSTRIÑA | Cromlech | Nafarroa | GOIZUETA-ARTIKUTZA-ARANTZA | Exacta (~25m) | | | |
| MUSTRIÑA 2 | Cromlech | | GOIZUETA-ARTIKUTZA-ARANTZA | Exacta (~25m) | | | |
| MUSULUN | Dolmen | Nafarroa | ARITZ - BELATE | Exacta (~25m) | | | |
| Mutxurro Oskotz | Túmulo | Imotz | ULTZAMA | Exacta (~25m) | | | |
| MUXUGORRI | Túmulo | Urruña | LARRAONA - LIZUNIAGA | Exacta (~25m) | | | |
| MUXUGORRI IPAR | Menhir | Urruña | LARRAONA - LIZUNIAGA | Exacta (~25m) | | | |
| MUXUGORRI ekialde | Dolmen | Urruña | LARRAONA - LIZUNIAGA | Exacta (~25m) | | | |
| NAASIKO GOENA | Túmulo | Gipuzkoa | ELOSUA - PLAZENTZIA | Exacta (~25m) | | | |
| NABALATZ | Túmulo | Etxalar | ATXURI - ESKISAROI | Exacta (~25m) | | | |
| NAPALATZA | Dolmen | Gipuzkoa | ATAUN - BURUNDA | Exacta (~25m) | | | |
| NAPARBASOKO PUNTA | Menhir | Araba | SIERRAS DE ELGEA - URKILLA | Exacta (~25m) | | | |
| Naparbidea | Menhir | | ARALAR | Exacta (~25m) | | | |
| NAPAZAL | Túmulo | Huesca | Valle de AÍSA | Exacta (~25m) | Nahiko egoera onean | | |
| NAVAFRIA | Dolmen | San Martin Unx | Nafarroa Garaia | Exacta (~25m) | Oso kaltetuta | | |
| NEGUSARO | Cromlech | | Iparraldea | Aproximada (~200m) | | | |
| NEGUSARO 2 erdi | Túmulo | | ORIZUN - URKULU | Exacta (~25m) | | | |
| NEGUSARO 1 hego | Túmulo | | ORIZUN - URKULU | Exacta (~25m) | | | |
| NEGUSARO hego | Cromlech | | ORIZUN - URKULU | Exacta (~25m) | | | |
| NEKAITZ | Cromlech | Nafarroa | SOALAR – AUTZA | Exacta (~25m) | | | |
| NEKAITZ | Menhir | Nafarroa | SOALAR – AUTZA | Exacta (~25m) | | | |
| O BATALLERO 1 | Cromlech | | Valle de TENA | Exacta (~25m) | | | |
| O FURCO | Cromlech | | Valle de TENA | Aproximada (~200m) | Nahiko egoera onean | | |
| O GOLUSO | Dolmen | | Valle de TENA | Exacta (~25m) | | | |
| O BATALLERO 2 | Cromlech | | Valle de TENA | Exacta (~25m) | | | |
| O FORATO | Túmulo | | Valle de TENA | Aproximada (~200m) | Nahiko egoera onean | | |
| O ZOQUE | Túmulo | Huesca | Valle de TENA | Exacta (~25m) | Oso kaltetuta | | |
| Oaitzileku | Fondo de cabaña | | ARALAR | Exacta (~25m) | | | |
