RDDM Index

Albedo Catena Cavus Chaos Chasma Collis Crater Dorsum Fluctus Fossa Labes Labyrinthus Lacus Lingula Macula Mare Mensa Mons Palus Patera Planitia Planum Regio Rupes Scopulus Serpens Sinus Sulcus Terra Tholus Unda Vallis Vastitas

List of chasmata

Chasma (plural chasmata) means in exogeology a valley with steep slopes or a wide canyon.

The [names in grey and italics] in the tables are dropped or moved, referenced here because they may appear in older documents. Latitudes and longitudes in white are planetocentric. Those in orange use the older planetographic system.

Name	Entity	Type	Lat	Lon	Ø km	Quad	Origin
Arsia Chasmata	Mars	Chasma	-7.47	240.65	97.06	mc17	Albedo name.
Ascraeus Chasmata	Mars	Chasma	8.77	254.37	105.20	mc09	Classical albedo name.
Baetis Chasma	Mars	Chasma	-4.29	295.13	92.21	mc18	From classical albedo feature at 5°S, 60°W; changed from Iamunae Chasma.
Candor Chasma	Mars	Chasma	-6.53	289.22	810.61	mc18	Classical albedo feature name.
Capri Chasma	Mars	Chasma	-8.27	317.93	1471.56	mc19	Classical albedo feature name.
Ceti Chasma	Mars	Chasma	-5.03	291.63	49.77	mc18	From albedo feature at 10°S, 74°W.
Chasma Australe	Mars	Chasma	-82.35	95.03	352.61	mc30	Classical albedo feature name.
Chasma Boreale	Mars	Chasma	82.54	312.36	459.88	mc01	Classical albedo feature name.
Coprates Chasma	Mars	Chasma	-13.37	299.26	958.31	mc18	Classical albedo feature name.
Echus Chasma	Mars	Chasma	2.47	280.04	391.10	mc10	Classical albedo feature name.
Elysium Chasma	Mars	Chasma	22.39	141.51	130.00	mc15	Albedo feature name.
Eos Chasma	Mars	Chasma	-12.15	320.83	1305.69	mc19	Classical albedo feature name.
Ganges Chasma	Mars	Chasma	-7.96	312.11	574.08	mc18	Classical albedo feature name.
Hebes Chasma	Mars	Chasma	-1.07	283.94	316.74	mc18	Classical albedo feature name.
Hellas Chasma	Mars	Chasma	-34.64	65.47	148.00	mc28	Classical albedo feature name.
Hyblaeus Chasma	Mars	Chasma	21.98	141.26	56.61	mc15	Albedo feature name.
Hydrae Chasma	Mars	Chasma	-6.75	297.99	55.18	mc18	Classical albedo feature name.
Ius Chasma	Mars	Chasma	-7.29	275.61	839.91	mc18	Classical albedo feature name.
Juventae Chasma	Mars	Chasma	-3.37	298.61	304.99	mc18	Classical albedo feature name.
Melas Chasma	Mars	Chasma	-10.52	287.46	563.52	mc18	Classical albedo feature name.
Ophir Chasma	Mars	Chasma	-4.00	287.65	314.71	mc18	Classical albedo feature name.
Pavonis Chasma	Mars	Chasma	2.73	248.98	45.94	mc09	Albedo name.
Promethei Chasma	Mars	Chasma	-82.66	141.39	295.28	mc30	Classical albedo feature name.
[Thyles Chasma]	Mars	Chasma	-70.79	127.50	235.00	mc30	Classical albedo feature; name changed to Thyles Rupes.
Tithonium Chasma	Mars	Chasma	-4.60	275.71	802.78	mc18	Classical albedo feature name.
Ultimum Chasma	Mars	Chasma	-81.10	151.37	322.09	mc30	Classical albedo feature name.

Index by entity

List of colles

Collis (plural colles) is a word of Latin origin referring to a small hill or slight elevation of the surface.

Latitudes and longitudes in white are planetocentric. Those in orange use the older planetographic system.

Name	Entity	Type	Lat	Lon	Ø km	Quad	Origin
Abalos Colles	Mars	Collis	76.83	288.35	235.83	mc01	Named for classical albedo feature at 72°N, 70°W.
Acidalia Colles	Mars	Collis	50.34	336.91	356.30	mc04	From classical albedo feature name.
Alpheus Colles	Mars	Collis	-39.38	61.53	633.03	mc28	From albedo feature at 45°S, 292°W.
Arena Colles	Mars	Collis	24.63	82.93	580.12	mc13	Classical albedo feature at 13°N, 294°W.
Ariadnes Colles	Mars	Collis	-34.50	172.78	188.01	mc29	Classical albedo feature name.
Astapus Colles	Mars	Collis	35.46	88.08	597.00	mc06	From albedo feature at 35°N, 269°W.
Avernus Colles	Mars	Collis	-1.73	171.02	238.70	mc23	Named for albedo feature at 10°S, 195°W.
Candor Colles	Mars	Collis	-6.63	284.43	37.38	mc18	Classical albedo feature name.
Chryse Colles	Mars	Collis	8.15	318.14	48.66	mc11	Classical albedo feature name.
Colles Nili	Mars	Collis	38.72	62.88	653.67	mc06	From classical albedo feature Portus Nili, at 38°N, 295°W.
Cydonia Colles	Mars	Collis	39.07	347.78	362.78	mc04	Named for classical albedo feature at 50°N, 355°W.
Deuteronilus Colles	Mars	Collis	41.95	21.70	59.01	mc05	Classical albedo feature name.
Galaxias Colles	Mars	Collis	36.80	147.48	610.34	mc07	Albedo feature name.
Hydraotes Colles	Mars	Collis	-0.02	326.32	47.50	mc19	Classical albedo feature name.
Ortygia Colles	Mars	Collis	53.90	350.70	255.62	mc04	Named for classical albedo feature at 65°N, 350°W.
Oxia Colles	Mars	Collis	21.24	333.73	595.24	mc11	From albedo feature at 25°N, 24°W.
Scandia Colles	Mars	Collis	65.47	220.87	1521.68	mc01	From albedo feature name.
Simois Colles	Mars	Collis	-37.72	183.41	86.94	mc24	Classical albedo feature name of Greek origin.
Syria Colles	Mars	Collis	-13.46	259.27	630.00	mc17	Classical albedo feature name, Syria.
Tartarus Colles	Mars	Collis	21.24	175.19	1672.69	mc15	From albedo feature at 2°N, 183°W.
Tempe Colles	Mars	Collis	33.75	277.44	34.49	mc03	Classical albedo name.
Ulysses Colles	Mars	Collis	6.14	236.91	84.81	mc09	Classical albedo feature name.