List of lunar features

Columns: Name | Dia | Name Origin
Dorsum Gast | 60 km | Paul Werner Gast ( 1930-1973 ) | Dorsum Grabau | 121 km | Amadeus William Grabau ( 1870-1946 ) | Dorsum Guettard | 40 km | Jean-Etienne Guettard ( 1715-1786 ) | Dorsum Heim | 148 km | Albert Heim ( 1849-1937 ) | Dorsum Higazy | 60 km | Riad Higazy ( 1919-1967 ) | Dorsum Nicol | 50 km | William Nicol ( 1768-1851 ) | Dorsum Niggli | 50 km | Paul Niggli ( 1888-1953 )

Example questions:
What is the diameter of the Dorsum lunar feature between Oceanus Procellarum and Mare Imbrium ? | Which Dorsum lunar feature was named as a Father of Italian Geology ? | What is the diameter of the Dorsum lunar feature named after an Egyptian earth scientist ? | What Dorsum lunar feature was named after a scientist born on November 8 , 1885 ? | What is the diameter of the Dorsum lunar feature named after a German-American geologist and palaeontologist ?

Answers:
107 km | Dorsum Arduino | 60 km | Dorsum Cloos | 90 km