|
| Feature Name | Feature Type | Origin | Center Point (Lat/Lon) |
| Aarna | Crater | Village in Rajasthan, India. | 14.7,-21.57 |
| Abalos Colles | Collis | Named for classical albedo feature at 72N, 70W. | 76.8291,-71.6499 |
| Abalos Mensa | Mensa | Classical albedo feature name. | 81.1699,-75.6041 |
| Abalos Scopuli | Scopulus | Classical albedo feature name. | 80.7206,-76.5602 |
| Abalos Undae | Unda | Classical albedo feature at 72N, 70W. | 78.5167,-87.4993 |
| Aban | Crater | Town in Russia. | 15.9069,111.101 |
| Abu | Crater | Village in Rajasthan, India. | 15.5,-22.78 |
| Abus Vallis | Vallis | Classical name for Humber River in England. | -5.4923,-147.199 |
| Achar | Crater | Town in Uruguay. | 45.4309,123.162 |
| Acheron Catena | Catena | Named for classical albedo feature at 35N, 140W. | 37.474,-100.796 |
| Acheron Fossae | Fossa | From classical albedo feature at 35N, 140W. | 38.2742,-135.024 |
| Acidalia Colles | Collis | From classical albedo feature name. | 50.336,-23.0886 |
| Acidalia Mensa | Mensa | From classical albedo feature name. | 46.6938,-25.3424 |
| Acidalia Planitia | Planitia | From classical albedo feature at 44N, 21W. | 49.76,-20.74 |
| Ada | Crater | Town in Oklahoma, USA. | -3.0605,-3.2243 |
| Adamas Labyrinthus | Labyrinthus | Classical albedo feature name; "A River of Diamonds"; today's River Sarbarnarekha in India. | 35.7035,105.117 |
| Adams | Crater | Walter S.; American astronomer (1876-1956). | 30.9137,163.1 |
| Aeolis | Albedo Feature | Floating island where winds were kept in a cave. | -4.9416,145 |
| Aeolis Chaos | Chaos | Classical albedo feature name. | -7.13,150.6 |
| Aeolis Dorsa | Dorsum | Classical albedo feature name. | -5.0465,152.635 |
| Aeolis Mensae | Mensa | Classical albedo feature name. | -3.2532,140.631 |
| Aeolis Mons | Mons | Classical albedo feature name. | -5.0834,137.845 |
| Aeolis Palus | Palus | Classical albedo feature name. | -4.4652,137.422 |
| Aeolis Planum | Planum | Classical albedo feature name. | -1.1366,144.765 |
| Aeolis Serpens | Serpens | Classical albedo feature name. | -1.3843,149.568 |
| Aeria | Albedo Feature | Greek name for Egypt; "far land of mist". | 9.885,50 |
| Aesacus Dorsum | Dorsum | From albedo feature at 45N, 205W. | 36.8177,153.147 |
| Aetheria | Albedo Feature | Upper world; land of living. | 39.6672,130 |
| Aethiopis | Albedo Feature | Countries of the Ethiopians on southern edge of the Earth. | 9.885,130 |
| Aganippe Fossa | Fossa | Classical albedo feature name. | -8.4885,-126.003 |
| Agassiz | Crater | Jean L.; American naturalist (1807-1873). | -69.8826,-88.8855 |
| Airy | Crater | George B.; British astronomer (1801-1892). | -5.14,0.05 |
| Airy 0 | Crater | Small crater within crater Airy that defines zero degrees longitude on Mars. | -5.0743,0.0014 |
| Ajon | Crater | Town in Russia. | 16.4913,103.143 |
| Aki | Crater | Town in Japan. | -35.4643,-60.2442 |
| Aktaj | Crater | Town in Russia. | 20.4112,-46.4894 |
| Al Qahira Vallis | Vallis | Word for 'Mars' in Arabic, Indonesian, Malay. | -18.2333,162.407 |
| Alamos | Crater | Town in Mexico. | 23.4828,-37.1242 |
| Alba Catena | Catena | Classical albedo name. | 35.0444,-114.577 |
| Alba Fossae | Fossa | Classical albedo name. | 49.3945,-106.825 |
| Alba Mons | Mons | Classical albedo feature name. | 41.082,-110.709 |
| Alba Patera | Patera | Classical albedo name. | 39.5258,-109.176 |
| Albany | Crater | American colonial town (New York). | 22.9619,-49.0196 |
| Albi | Crater | Town in France. | -41.4747,-35.0076 |
| Albor Fossae | Fossa | From albedo feature at 20N, 205W. | 18.0891,150.776 |
| Albor Tholus | Tholus | Classical albedo feature name. | 18.867,150.466 |
| Alexey Tolstoy | Crater | Aleksey; Soviet writer (1882-1945). | -47.4389,125.339 |
| Alga | Crater | Town in Kazakhstan. | -24.3414,-26.677 |
| Alitus | Crater | (Alytus), town in Lithuania. | -34.912,-38.1429 |
| Allegheny Vallis | Vallis | River in Pennsylvania, USA. | -9.007,-53.8972 |
| Alnif | Crater | Town in Morocco. | -15.1354,-31.09 |
| Alofi | Crater | Town in Niue. | 9.84,-0.02 |
| Alpheus Colles | Collis | From albedo feature at 45S, 292W. | -39.3795,61.5326 |
| Amazonis | Albedo Feature | Land of the Amazons; on the island Hesperia. | 0,-140 |
| Amazonis Mensa | Mensa | Classical albedo feature name. | -1.9776,-146.904 |
| Amazonis Planitia | Planitia | Classical albedo feature name; home of the Amazons. | 25.7461,-162.913 |
| Amazonis Sulci | Sulcus | Albedo feature name; home of the Amazons. | -2.1507,-143.709 |
| Amed | Crater | Village in Indonesia. | -4.37,77.83 |
| Amenthes | Albedo Feature | Egyptian name for place where souls of the dead go. | 4.9416,110 |
| Amenthes Cavi | Cavus | Classical albedo feature name. | 16.231,114.52 |
| Amenthes Fossae | Fossa | Classical albedo feature name. | 9.0748,102.684 |
| Amenthes Planum | Planum | Classical albedo feature name. | 3.4,105.92 |
| Amenthes Rupes | Rupes | Classical albedo feature name. | 1.5093,110.676 |
| Amphitrites Patera | Patera | Mare Amphitrites; classical albedo feature name. | -58.6962,60.8676 |
| Amsterdam | Crater | Dutch port. | 23.0029,-47.0029 |
| Andapa | Crater | Town in Madagascar. | -5.3318,-4.7283 |
| Angelica | Crater | Town in New York, USA. | 18.65,76.95 |
| Angu | Crater | Town in Zaire. | 20.0126,105.637 |
| Angustus Labyrinthus | Labyrinthus | Classical albedo feature name. | -81.6218,-63.3901 |
| Aniak | Crater | Town in Alaska, USA. | -31.8378,-69.5628 |
| Anio Valles | Vallis | Classical river in Italy; modern Aniene and Teverone rivers. | 37.7508,55.8862 |
| Annapolis | Crater | American colonial town (Maryland). | 23.1644,-47.7268 |
| Anseris Mons | Mons | From albedo feature Anseris Fons. | -29.805,86.6525 |
| Antoniadi | Crater | Eugène Michael; Turkish-born French astronomer (1870-1944). | 21.3819,60.8311 |
| Aonia Mons | Mons | Classical albedo feature name. | -53.3301,-87.9163 |
| Aonia Planum | Planum | Classical albedo feature name. | -57.8975,-78.6745 |
| Aonia Terra | Terra | Classical albedo feature name. | -60.2034,-97.0453 |
| Aonia Tholus | Tholus | Classical albedo feature name. | -59.0372,-80.04 |
| Aonium Sinus | Albedo Feature | Named for Aonides, or Muses. | -44.6618,-105 |
| Apia | Crater | Town in Samoa. | -37.283,89.015 |
| Apollinaris Mons | Mons | Classical albedo feature name. | -9.1712,174.793 |
| Apollinaris Patera | Patera | Classical albedo feature name. | -8.5743,174.183 |
| Apollinaris Sulci | Sulcus | Albedo feature at 5S, 187W. | -11.0642,177.466 |
| Apollinaris Tholus | Tholus | Albedo feature name. | -17.6377,175.752 |
| Apollo Patera | Patera | Greek god of light, poetry, music and arts, one of the Olympian gods, son of Zeus. | 17.94,-133.55 |
| Apsus Vallis | Vallis | Classical river in ancient Macedonia, present-day Greece. | 34.9112,134.991 |
| Apt | Crater | Town in France. | 39.8804,-9.4699 |
| Arabia | Albedo Feature | Country bordering on Aeria (Egypt). | 19.7836,30 |
| Arabia Terra | Terra | Classical albedo feature name. | 21.249,5.7185 |
| Arago | Crater | Dominique F.; French astronomer (1786-1853). | 10.2212,29.9262 |
| Arago Dorsa | Dorsum | Named for nearby Arago crater; Dominique F.; French astronomer (1786-1853). | 9.74,29.39 |
| Aram Chaos | Chaos | Classical albedo feature name. | 2.5233,-22.3916 |
| Aram Dorsum | Dorsum | Classical albedo feature name. | 7.7986,-11.2372 |
| Arandas | Crater | Town in Mexico. | 42.4061,-15.0272 |
| Arcadia | Albedo Feature | Mountainous region in southern Greece. | 44.6618,-100 |
| Arcadia Dorsa | Dorsum | Named for classical albedo feature at 45N, 120W. | 55.8961,-137.56 |
| Arcadia Planitia | Planitia | From classical albedo feature at 45N, 120W. | 49.02,-171.85 |
| Arda Valles | Vallis | Ancient European river (Bulgaria). | -20.403,-32.3128 |
| Arena Colles | Collis | Classical albedo feature at 13N, 294W. | 24.6276,82.9305 |
| Arena Dorsum | Dorsum | Classical albedo feature name. | 12.706,68.937 |
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