|
| Feature Name | Feature Type | Origin | Center Point (Lat/Lon) |
| Abalos Colles | Collis | Named for classical albedo feature at 72N, 70W. | 76.829,-71.65 |
| Abalos Mensa | Mensa | Classical albedo feature name. | 81.17,-75.604 |
| Abalos Scopuli | Scopulus | Classical albedo feature name. | 80.721,-76.56 |
| Abalos Undae | Unda | Classical albedo feature at 72N, 70W. | 78.517,-87.499 |
| Aban | Crater | Town in Russia. | 15.907,111.101 |
| Abus Vallis | Vallis | Classical name for Humber River in England. | -5.492,-147.199 |
| Achar | Crater | Town in Uruguay. | 45.431,123.161 |
| 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. | 38.274,-135.024 |
| Acidalia Colles | Collis | From classical albedo feature name. | 50.336,-23.089 |
| Acidalia Mensa | Mensa | From classical albedo feature name. | 46.694,-25.342 |
| Acidalia Planitia | Planitia | From classical albedo feature at 44N, 21W. | 45.53,-25.502 |
| Ada | Crater | Town in Oklahoma, USA. | -3.06,-3.224 |
| Adamas Labyrinthus | Labyrinthus | Classical albedo feature name; "A River of Diamonds"; today's River Sarbarnarekha in India. | 35.703,105.117 |
| Adams | Crater | Walter S.; American astronomer (1876-1956). | 30.914,163.1 |
| Aeolis | Albedo Feature | Floating island where winds were kept in a cave. | -4.942,145 |
| Aeolis Mensae | Mensa | Classical albedo feature name. | -3.253,140.631 |
| Aeolis Planum | Planum | Classical albedo feature name. | -1.137,144.765 |
| Aeria | Albedo Feature | Greek name for Egypt; "far land of mist". | 9.885,50 |
| Aesacus Dorsum | Dorsum | From albedo feature at 45N, 205W. | 36.818,153.147 |
| Aetheria | Albedo Feature | Upper world; land of living. | 39.667,130 |
| Aethiopis | Albedo Feature | Countries of the Ethiopians on southern edge of the Earth. | 9.885,130 |
| Aganippe Fossa | Fossa | Classical albedo feature name. | -8.489,-126.003 |
| Agassiz | Crater | Jean L.; American naturalist (1807-1873). | -69.883,-88.885 |
| Airy | Crater | George B.; British astronomer (1801-1892). | -5.136,0.054 |
| Airy 0 | Crater | Small crater within crater Airy that defines zero degrees longitude on Mars. | -5.074,0.001 |
| Ajon | Crater | Town in Russia. | 16.491,103.143 |
| Aki | Crater | Town in Japan. | -35.464,-60.244 |
| Aktaj | Crater | Town in Russia. | 20.411,-46.489 |
| Al Qahira Vallis | Vallis | Word for 'Mars' in Arabic, Indonesian, Malay. | -18.233,162.407 |
| Alamos | Crater | Town in Mexico. | 23.483,-37.124 |
| Alba Catena | Catena | Classical albedo name. | 35.044,-114.577 |
| Alba Fossae | Fossa | Classical albedo name. | 49.394,-106.825 |
| Alba Mons | Mons | Classical albedo feature name. | 41.082,-110.709 |
| Alba Patera | Patera | Classical albedo name. | 39.526,-109.176 |
| Albany | Crater | American colonial town (New York). | 22.962,-49.02 |
| Albi | Crater | Town in France. | -41.475,-35.008 |
| Albor Fossae | Fossa | From albedo feature at 20N, 205W. | 18.089,150.776 |
| Albor Tholus | Tholus | Classical albedo feature name. | 18.867,150.466 |
| Alexey Tolstoy | Crater | Aleksey; Soviet writer (1882-1945). | -47.439,125.339 |
| Alga | Crater | Town in Kazakhstan. | -24.341,-26.677 |
| Alitus | Crater | Town in Lithuania. | -34.912,-38.143 |
| Allegheny Vallis | Vallis | River in Pennsylvania, USA. | -9.007,-53.897 |
| Alpheus Colles | Collis | From albedo feature at 45S, 292W. | -39.38,61.533 |
| Amazonis | Albedo Feature | Land of the Amazons; on the island Hesperia. | 0,-140 |
| Amazonis Mensa | Mensa | Classical albedo feature name. | -1.978,-146.904 |
| Amazonis Planitia | Planitia | Classical albedo feature name; home of the Amazons. | 22.85,-163.062 |
| Amazonis Sulci | Sulcus | Albedo feature name; home of the Amazons. | -2.151,-143.709 |
| Amenthes | Albedo Feature | Egyptian name for place where souls of the dead go. | 4.942,110 |
| Amenthes Cavi | Cavus | Classical albedo feature name. | 16.231,114.52 |
| Amenthes Fossae | Fossa | Classical albedo feature name. | 9.075,102.684 |
| Amenthes Planum | Planum | Classical albedo feature name. | 3.404,105.921 |
| Amenthes Rupes | Rupes | Classical albedo feature name. | 1.509,110.676 |
| Amphitrites Patera | Patera | Mare Amphitrites; classical albedo feature name. | -58.696,60.868 |
| Amsterdam | Crater | Dutch port. | 23.003,-47.003 |
| Angu | Crater | Town in Zaire. | 20.013,105.637 |
| Angustus Labyrinthus | Labyrinthus | Classical albedo feature name. | -81.622,-63.39 |
| Aniak | Crater | Town in Alaska, USA. | -31.838,-69.563 |
| Anio Valles | Vallis | Classical river in Italy; modern Aniene and Teverone rivers. | 37.751,55.886 |
| Annapolis | Crater | American colonial town (Maryland). | 23.164,-47.727 |
| Anseris Mons | Mons | From albedo feature Anseris Fons. | -29.805,86.652 |
| Antoniadi | Crater | Eugène Michael; Turkish-born French astronomer (1870-1944). | 21.382,60.831 |
| Aonia Planum | Planum | Classical albedo feature name. | -57.898,-78.674 |
| Aonia Terra | Terra | Classical albedo feature name. | -60.203,-97.045 |
| Aonium Sinus | Albedo Feature | Named for Aonides, or Muses. | -44.662,-105 |
| Apia | Crater | Town in Samoa. | -37.283,89.015 |
| Apollinaris Mons | Mons | Classical albedo feature name. | -9.171,174.793 |
| Apollinaris Patera | Patera | Classical albedo feature name. | -8.574,174.183 |
| Apollinaris Sulci | Sulcus | Albedo feature at 5S, 187W. | -11.064,177.466 |
| Apollinaris Tholus | Tholus | Albedo feature name. | -17.638,175.752 |
| Apsus Vallis | Vallis | Classical river in ancient Macedonia, present-day Greece. | 34.911,134.991 |
| Apt | Crater | Town in France. | 39.88,-9.47 |
| Arabia | Albedo Feature | Country bordering on Aeria (Egypt). | 19.784,30 |
| Arabia Terra | Terra | Classical albedo feature name. | 21.249,5.719 |
| Arago | Crater | Dominique F.; French astronomer (1786-1853). | 10.221,29.926 |
| Aram Chaos | Chaos | Classical albedo feature name. | 2.523,-22.392 |
| Arandas | Crater | Town in Mexico. | 42.406,-15.027 |
| Arcadia | Albedo Feature | Mountainous region in southern Greece. | 44.662,-100 |
| Arcadia Dorsa | Dorsum | Named for classical albedo feature at 45N, 120W. | 55.896,-137.56 |
| Arcadia Planitia | Planitia | From classical albedo feature at 45N, 120W. | 56.014,-171.37 |
| Arda Valles | Vallis | Ancient European river (Bulgaria). | -20.403,-32.313 |
| Arena Colles | Collis | Classical albedo feature at 13N, 294W. | 24.628,82.931 |
| Arena Dorsum | Dorsum | Classical albedo feature name. | 12.706,68.937 |
| Ares Vallis | Vallis | Word for 'Mars' in Greek. | 10.292,-25.608 |
| Argas | Crater | Town in Russia. | 23.329,-50.168 |
| Argentea Planum | Planum | Classical albedo feature name. | -72.494,-61.666 |
| Argyre | Albedo Feature | Silver Island at mouth of Ganges River; present-day Arakan, Burma. | -44.662,-25 |
| Argyre Cavi | Cavus | Albedo name. | -48.307,-40.122 |
| Argyre Planitia | Planitia | Classical albedo feature name. | -49.841,-43.31 |
| Argyre Rupes | Rupes | Classical albedo feature name. | -62.154,-68.754 |
| Ariadnes Colles | Collis | Classical albedo feature name. | -34.498,172.775 |
| Arica | Crater | Town in Colombia. | -23.801,110.238 |
| Arimanes Rupes | Rupes | Albedo feature; classical Persian deity of wickedness. | -9.839,-147.696 |
| Arkhangelsky | Crater | A.D.; Russian geologist. | -41.088,-24.788 |
| Arnon | Albedo Feature | Classical name for present El-Mojib River, Jordan. | 47.663,25 |
| Arnus Vallis | Vallis | Classical and present day Arno River in Tuscany, Italy (previously named Arena Rupes). | 13.967,70.615 |
| Aromatum Chaos | Chaos | Classical albedo feature name. | -1.03,-42.97 |
| Arrhenius | Crater | Svante; Swedish physical chemist (1859-1927). | -40.042,122.706 |
| Arsia Chasmata | Chasma | Albedo name. | -7.469,-119.346 |
| Arsia Mons | Mons | Arsia Silva-classical albedo feature name. | -8.257,-120.092 |
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