List of geological features on Ida and Dactyl

Ida

Idaean regiones are named after the discoverer of the asteroid, and the places where he worked.

Dorsum	Coordinates	Diameter	Approval Date	Named After	Ref
Townsend Dorsum		40	1997	Tim E. Townsend, a member of the Galileo probe imaging team

Idaean craters are named after famous caves.

Crater	Coordinates	Diameter	Approval Date	Named After	Ref
Afon		0.8	1994	Novy Afon Cave, Abkhazia
Atea		2	1997	Atea Cave, Papua New Guinea
Azzurra		9.6	1997	Azzurra Grotto, Italy
Bilemot		1.8	1997	Bilemot Cave, Korea
Castellana		5.2	1997	Castellana Cave, Italy
Choukoutien		1.1	1997	Choukoutien, China
Fingal		1.5	1997	Fingal's Cave, UK
Kartchner		0.9	1997	Kartchner Caverns, AZ, United States
Kazumura		2.1	1997	Kazumura Cave, HI, United States
Lascaux		11.8	1997	Lascaux Cave, France
Lechuguilla		1.5	1997	Lechuguilla Cave, NM, United States
Mammoth		10.2	1997	Mammoth Cave, KY, United States
Manjang		1	1997	Manjang Cave, Korea
Orgnac		10.6	1997	Orgnac Cave, France
Padirac		1.9	1997	Padirac Cave, France
Peacock		0.2	1997	Peacock Cave, FL, United States
Postojna		6	1997	Postojna Cave, Slovenia
Sterkfontein		4.7	1997	Sterkfontein, South Africa
Stiffe		1.5	1997	Stiffe Cave, Italy
Undara		8.5	1997	Undara Cave, Australia
Viento		1.6	1997	Viento Cave, Spain

Dactylian craters are named after the mythological Dactyls.