# List of maria on the Moon

This is a list of maria (large, dark, basaltic plains) on the Moon. It includes other basaltic plains, including the one oceanus as well as features known by the names lacus, palus and sinus. The modern system of lunar nomenclature was introduced in 1651 by Giovanni Battista Riccioli.
Riccioli's map of the Moon was drawn by Francesco Maria Grimaldi, who has a crater named after him. A related set of features are the Lunar lacus /ˈleɪkəs/ (singular also lacus, Latin for "lake"), which are smaller basaltic plains of similar origin. A related set of features are the sinus /ˈsaɪnəs/ (singular sinus, Latin for "bay") and paludes /pəˈluːdiːz/ (singular palus /ˈpeɪləs/, Latin palūs, palūdēs "marsh").
There was also a region on the Lunar farside that was briefly misidentified as a mare and named Mare Desiderii (Sea of Desire). It is no longer recognized. Other former? maria include: Mare Parvum ("Small Sea"), immediately to the east of Inghirami; Mare Incognitum ("Unknown Sea"); Mare Novum ("New Sea"), northeast of Plutarch; and Mare Struve ("Struve's Sea"), near Messala. Some sources also list a Palus Nebularum (Latin palūs nebulārum /ˈpeɪləs nɛbjʊˈlɛərəm/ "Marsh of Mists") at 38.0° N, 1.0° E. However, the designation for this feature has not been officially recognized by the IAU.

## Lunar plains

Maria and Oceanus of the Moon :
| Latin name | Name (English translation) | Diameter | Lunar coordinates | Quadr­angles | Refs |
| Mare Anguis | Serpent Sea | 150 km (93 mi) | 22°36′0″N 67°42′0″E﻿ / ﻿22.60000°N 67.70000°E﻿ / 22.60000; 67.70000﻿ (Mare Anguis) | LQ13 | REF |
| Mare Australe | Southern Sea | 603 km (375 mi) | 38°54′0″S 93°0′0″E﻿ / ﻿38.90000°S 93.00000°E﻿ / -38.90000; 93.00000﻿ (Mare Australe) | LQ28 | REF |
| Mare Cognitum | Sea of Knowledge | 376 km (234 mi) | 10°30′0″S 22°18′0″W﻿ / ﻿10.50000°S 22.30000°W﻿ / -10.50000; -22.30000﻿ (Mare Cognitum) | LQ19 | REF |
| Mare Crisium | Sea of Crises | 418 km (260 mi) | 17°0′0″N 59°6′0″E﻿ / ﻿17.00000°N 59.10000°E﻿ / 17.00000; 59.10000﻿ (Mare Crisium) | LQ13 | REF |
| Mare Fecunditatis | Sea of Fecundity | 909 km (565 mi) | 7°48′0″S 51°18′0″E﻿ / ﻿7.80000°S 51.30000°E﻿ / -7.80000; 51.30000﻿ (Mare Fecunditatis) | LQ21 | REF |
| Mare Frigoris | Sea of Cold | 1,596 km (992 mi) | 56°0′0″N 1°24′0″E﻿ / ﻿56.00000°N 1.40000°E﻿ / 56.00000; 1.40000﻿ (Mare Frigoris) | LQ05 | REF |
| Mare Humboldtianum | Sea of Alexander von Humboldt | 273 km (170 mi) | 56°54′0″N 81°30′0″E﻿ / ﻿56.90000°N 81.50000°E﻿ / 56.90000; 81.50000﻿ (Mare Humboldtianum) | LQ06 | REF |
| Mare Humorum | Sea of Moisture or Humors | 389 km (242 mi) | 24°24′0″S 38°36′0″W﻿ / ﻿24.40000°S 38.60000°W﻿ / -24.40000; -38.60000﻿ (Mare Humorum) | LQ19 | REF |
| Mare Imbrium | Sea of Showers | 1,123 km (698 mi) | 32°48′0″N 15°36′0″W﻿ / ﻿32.80000°N 15.60000°W﻿ / 32.80000; -15.60000﻿ (Mare Imbrium) | LQ04 | REF |
| Mare Ingenii | Sea of Cleverness | 318 km (198 mi) | 33°42′0″S 163°30′0″E﻿ / ﻿33.70000°S 163.50000°E﻿ / -33.70000; 163.50000﻿ (Mare Ingenii) | LQ29 | REF |
| Mare Insularum | Sea of Islands | 513 km (319 mi) | 7°30′0″N 30°54′0″W﻿ / ﻿7.50000°N 30.90000°W﻿ / 7.50000; -30.90000﻿ (Mare Insularum) | LQ11 | REF |
| Mare Marginis | Sea of the Edge | 420 km (260 mi) | 13°18′0″N 86°6′0″E﻿ / ﻿13.30000°N 86.10000°E﻿ / 13.30000; 86.10000﻿ (Mare Marginis) | LQ13 | REF |
| Mare Moscoviense | Sea of Moscow | 277 km (172 mi) | 27°18′0″N 147°54′0″E﻿ / ﻿27.30000°N 147.90000°E﻿ / 27.30000; 147.90000﻿ (Mare Moscoviense) | LQ15 | REF |
| Mare Nectaris | Sea of Nectar | 333 km (207 mi) | 15°12′0″S 34°36′0″E﻿ / ﻿15.20000°S 34.60000°E﻿ / -15.20000; 34.60000﻿ (Mare Nectaris) | LQ20 | REF |
| Mare Nubium | Sea of Clouds | 715 km (444 mi) | 21°18′0″S 16°36′0″W﻿ / ﻿21.30000°S 16.60000°W﻿ / -21.30000; -16.60000﻿ (Mare Nubium) | LQ19 | REF |
| Mare Orientale | Eastern Sea | 327 km (203 mi) | 19°24′0″S 92°48′0″W﻿ / ﻿19.40000°S 92.80000°W﻿ / -19.40000; -92.80000﻿ (Mare Orientale) | LQ17 | REF |
| Mare Serenitatis | Sea of Serenity | 707 km (439 mi) | 28°0′0″N 17°30′0″E﻿ / ﻿28.00000°N 17.50000°E﻿ / 28.00000; 17.50000﻿ (Mare Serenitatis) | LQ12 | REF |
| Mare Smythii | Smyth's Sea | 373 km (232 mi) | 1°18′0″N 87°30′0″E﻿ / ﻿1.30000°N 87.50000°E﻿ / 1.30000; 87.50000﻿ (Mare Smythii) | LQ13 | REF |
| Mare Spumans | Foaming Sea | 139 km (86 mi) | 1°18′0″N 65°18′0″E﻿ / ﻿1.30000°N 65.30000°E﻿ / 1.30000; 65.30000﻿ (Mare Spumans) | LQ13 | REF |
| Mare Tranquillitatis | Sea of Tranquility | 873 km (542 mi) | 8°30′0″N 31°24′0″E﻿ / ﻿8.50000°N 31.40000°E﻿ / 8.50000; 31.40000﻿ (Mare Tranquillitatis) | LQ12 | REF |
| Mare Undarum | Sea of Waves | 243 km (151 mi) | 7°29′24″N 68°39′36″E﻿ / ﻿7.49000°N 68.66000°E﻿ / 7.49000; 68.66000﻿ (Mare Undarum) | LQ13 | REF |
| Mare Vaporum | Sea of Vapors | 245 km (152 mi) | 13°18′0″N 3°36′0″E﻿ / ﻿13.30000°N 3.60000°E﻿ / 13.30000; 3.60000﻿ (Mare Vaporum) | LQ12 | REF |
| Oceanus Procellarum | Ocean of Storms | 2,568 km (1,596 mi) | 18°24′0″N 57°24′0″W﻿ / ﻿18.40000°N 57.40000°W﻿ / 18.40000; -57.40000﻿ (Oceanus Procellarum) | LQ10 | REF |
| Lacus Aestatis | Lake of Summer | 90 km (56 mi) | 15°0′0″S 69°0′0″W﻿ / ﻿15.00000°S 69.00000°W﻿ / -15.00000; -69.00000﻿ (Lacus Aestatis) | LQ18 | REF |
| Lacus Autumni | Lake of Autumn | 183 km (114 mi) | 9°54′0″S 83°54′0″W﻿ / ﻿9.90000°S 83.90000°W﻿ / -9.90000; -83.90000﻿ (Lacus Autumni) | LQ18 | REF |
| Lacus Bonitatis | Lake of Goodness | 92 km (57 mi) | 23°12′0″N 44°18′0″E﻿ / ﻿23.20000°N 44.30000°E﻿ / 23.20000; 44.30000﻿ (Lacus Bonitatis) | LQ12 | REF |
| Lacus Doloris | Lake of Sorrow | 110 km (68 mi) | 16°48′0″N 8°36′0″E﻿ / ﻿16.80000°N 8.60000°E﻿ / 16.80000; 8.60000﻿ (Lacus Doloris) | LQ12 | REF |
| Lacus Excellentiae | Lake of Excellence | 184 km (114 mi) | 35°24′0″S 44°0′0″W﻿ / ﻿35.40000°S 44.00000°W﻿ / -35.40000; -44.00000﻿ (Lacus Excellentiae) | LQ26 | REF |
| Lacus Felicitatis | Lake of Happiness | 90 km (56 mi) | 18°30′0″N 5°24′0″E﻿ / ﻿18.50000°N 5.40000°E﻿ / 18.50000; 5.40000﻿ (Lacus Felicitatis) | LQ12 | REF |
| Lacus Gaudii | Lake of Joy | 113 km (70 mi) | 16°18′0″N 12°18′0″E﻿ / ﻿16.30000°N 12.30000°E﻿ / 16.30000; 12.30000﻿ (Lacus Gaudii) | LQ12 | REF |
| Lacus Hiemalis | Lake of Winter | 50 km (31 mi) | 15°0′0″N 14°0′0″E﻿ / ﻿15.00000°N 14.00000°E﻿ / 15.00000; 14.00000﻿ (Lacus Hiemalis) | LQ12 | REF |
| Lacus Lenitatis | Lake of Softness | 80 km (50 mi) | 14°18′0″N 12°6′0″E﻿ / ﻿14.30000°N 12.10000°E﻿ / 14.30000; 12.10000﻿ (Lacus Lenitatis) | LQ12 | REF |
| Lacus Luxuriae | Lake of Luxury | 50 km (31 mi) | 19°24′36″N 176°30′0″E﻿ / ﻿19.41000°N 176.50000°E﻿ / 19.41000; 176.50000﻿ (Lacus Luxuriae) | LQ15 | REF |
| Lacus Mortis | Lake of Death | 151 km (94 mi) | 45°7′48″N 27°19′12″E﻿ / ﻿45.13000°N 27.32000°E﻿ / 45.13000; 27.32000﻿ (Lacus Mortis) | LQ05 | REF |
| Lacus Oblivionis | Lake of Forgetfulness | 50 km (31 mi) | 21°0′0″S 168°0′0″W﻿ / ﻿21.00000°S 168.00000°W﻿ / -21.00000; -168.00000﻿ (Lacus Oblivionis) | LQ16 | REF |
| Lacus Odii | Lake of Hatred | 70 km (43 mi) | 19°0′0″N 7°0′0″E﻿ / ﻿19.00000°N 7.00000°E﻿ / 19.00000; 7.00000﻿ (Lacus Odii) | LQ12 | REF |
| Lacus Perseverantiae | Lake of Perseverance | 70 km (43 mi) | 8°0′0″N 62°0′0″E﻿ / ﻿8.00000°N 62.00000°E﻿ / 8.00000; 62.00000﻿ (Lacus Perseverantiae) | LQ13 | REF |
| Lacus Solitudinis | Lake of Solitude | 139 km (86 mi) | 27°48′0″S 104°18′0″E﻿ / ﻿27.80000°S 104.30000°E﻿ / -27.80000; 104.30000﻿ (Lacus Solitudinis) | LQ22 | REF |
| Lacus Somniorum | Lake of Dreams | 384 km (239 mi) | 37°33′36″N 30°48′0″E﻿ / ﻿37.56000°N 30.80000°E﻿ / 37.56000; 30.80000﻿ (Lacus Somniorum) | LQ05 | REF |
| Lacus Spei | Lake of Hope | 80 km (50 mi) | 43°27′36″N 65°12′0″E﻿ / ﻿43.46000°N 65.20000°E﻿ / 43.46000; 65.20000﻿ (Lacus Spei) | LQ06 | REF |
| Lacus Temporis | Lake of Time | 117 km (73 mi) | 46°46′12″N 56°12′36″E﻿ / ﻿46.77000°N 56.21000°E﻿ / 46.77000; 56.21000﻿ (Lacus Temporis) | LQ05 | REF |
| Lacus Timoris | Lake of Fear | 117 km (73 mi) | 39°24′0″S 27°54′0″W﻿ / ﻿39.40000°S 27.90000°W﻿ / -39.40000; -27.90000﻿ (Lacus Timoris) | LQ26 | REF |
| Lacus Veris | Lake of Spring | 396 km (246 mi) | 16°30′0″S 86°6′0″W﻿ / ﻿16.50000°S 86.10000°W﻿ / -16.50000; -86.10000﻿ (Lacus Veris) | LQ18 | REF |
| Palus Epidemiarum | Marsh of Epidemics | 286 km (178 mi) | 32°0′0″S 28°12′0″W﻿ / ﻿32.00000°S 28.20000°W﻿ / -32.00000; -28.20000﻿ (Palus Epidemiarum) | LQ26 | REF |
| Palus Putredinis | Marsh of Decay | 161 km (100 mi) | 27°24′0″N 0°0′0″E﻿ / ﻿27.40000°N 0.00000°E﻿ / 27.40000; 0.00000﻿ (Palus Putredinis) | LQ12 | REF |
| Palus Somni | Marsh of Sleep | 143 km (89 mi) | 14°6′0″N 45°0′0″E﻿ / ﻿14.10000°N 45.00000°E﻿ / 14.10000; 45.00000﻿ (Palus Somni) | LQ13 | REF |
| Sinus Aestuum | Seething Bay | 290 km (180 mi) | 12°6′0″N 8°18′0″W﻿ / ﻿12.10000°N 8.30000°W﻿ / 12.10000; -8.30000﻿ (Sinus Aestuum) | LQ11 | REF |
| Sinus Amoris | Bay of Love | 130 km (81 mi) | 19°54′0″N 37°18′0″E﻿ / ﻿19.90000°N 37.30000°E﻿ / 19.90000; 37.30000﻿ (Sinus Amoris) | LQ12 | REF |
| Sinus Asperitatis | Bay of Roughness | 206 km (128 mi) | 3°48′0″S 27°24′0″E﻿ / ﻿3.80000°S 27.40000°E﻿ / -3.80000; 27.40000﻿ (Sinus Asperitatis) | LQ20 | REF |
| Sinus Concordiae | Bay of Harmony | 142 km (88 mi) | 10°48′0″N 43°12′0″E﻿ / ﻿10.80000°N 43.20000°E﻿ / 10.80000; 43.20000﻿ (Sinus Concordiae) | LQ12 | REF |
| Sinus Fidei | Bay of Trust | 70 km (43 mi) | 18°0′0″N 2°0′0″E﻿ / ﻿18.00000°N 2.00000°E﻿ / 18.00000; 2.00000﻿ (Sinus Fidei) | LQ12 | REF |
| Sinus Honoris | Bay of Honor | 109 km (68 mi) | 11°42′0″N 17°54′0″E﻿ / ﻿11.70000°N 17.90000°E﻿ / 11.70000; 17.90000﻿ (Sinus Honoris) | LQ12 | REF |
| Sinus Iridum | Bay of Rainbows | 236 km (147 mi) | 45°0′36″N 31°40′12″W﻿ / ﻿45.01000°N 31.67000°W﻿ / 45.01000; -31.67000﻿ (Sinus Iridum) | LQ04 | REF |
| Sinus Lunicus | Lunik Bay | 126 km (78 mi) | 32°24′0″N 1°54′0″W﻿ / ﻿32.40000°N 1.90000°W﻿ / 32.40000; -1.90000﻿ (Sinus Lunicus) | LQ04 | REF |
| Sinus Medii | Bay of the center | 335 km (208 mi) | 1°36′0″N 1°0′0″E﻿ / ﻿1.60000°N 1.00000°E﻿ / 1.60000; 1.00000﻿ (Sinus Medii) | LQ12 | REF |
| Sinus Roris | Bay of Dew | 202 km (126 mi) | 54°0′0″N 56°36′0″W﻿ / ﻿54.00000°N 56.60000°W﻿ / 54.00000; -56.60000﻿ (Sinus Roris) | LQ04 | REF |
| Sinus Successus | Bay of Success | 132 km (82 mi) | 0°54′0″N 59°0′0″E﻿ / ﻿0.90000°N 59.00000°E﻿ / 0.90000; 59.00000﻿ (Sinus Successus) | LQ13 | REF |
| Sinus Viscositatis | Bay of Stickiness | 68 km (42 mi) | 35°15′0″N 40°59′24″W﻿ / ﻿35.25000°N 40.99000°W﻿ / 35.25000; -40.99000﻿ (Sinus Viscositatis) | LQ04 | REF |