A related set of features are the Lunar lacus (singular lacus, Latin for "lake"), which are smaller basaltic plains of similar origin:
| Latin Name | English Name | Lat. | Long. | Diameter (km) |
|---|---|---|---|---|
| Lacus Aestatis | Lake of Summer | 15.0° S | 69.0° W | 90 |
| Lacus Autumni | Lake of Autumn | 9.9° S | 83.9° W | 183 |
| Lacus Bonitatis | Lake of Goodness | 23.2° N | 43.7° E | 92 |
| Lacus Doloris | Lake of Sorrow | 17.1° N | 9.0° E | 110 |
| Lacus Excellentiae | Lake of Excellence | 35.4° S | 44.0° W | 184 |
| Lacus Felicitatis | Lake of Happiness | 19.0° N | 5.0° E | 90 |
| Lacus Gaudii | Lake of Joy | 16.2° N | 12.6° E | 113 |
| Lacus Hiemalis | Lake of Winter | 15.0° N | 14.0° E | 50 |
| Lacus Lenitatis | Lake of Softness | 14.0° N | 12.0° E | 80 |
| Lacus Luxuriae | Lake of Luxury | 19.0° N | 176.0° E | 50 |
| Lacus Mortis | Lake of Death | 45.0° N | 27.2° E | 151 |
| Lacus Oblivionis | Lake of Forgetfulness | 21.0° S | 168.0° W | 50 |
| Lacus Odii | Lake of Hatred | 19.0° N | 7.0° E | 70 |
| Lacus Perseverantiae | Lake of Perseverance | 8.0° N | 62.0° E | 70 |
| Lacus Solitudinis | Lake of Solitude | 27.8° S | 104.3° E | 139 |
| Lacus Somniorum | Lake of Dreams | 38.0° N | 29.2° E | 384 |
| Lacus Spei | Lake of Hope | 43.0° N | 65.0° E | 80 |
| Lacus Temporis | Lake of Time | 45.9° N | 58.4° E | 117 |
| Lacus Timoris | Lake of Fear | 38.8° S | 27.3° W | 117 |
| Lacus Veris | Lake of Spring | 16.5° S | 86.1° W | 396 |
Read more about this topic: List Of Maria On The Moon