RDG meaning in Earth Science ?

Answer: What is Ridge mean?

A ridge or a mountain ridge is a geographical feature consisting of a chain of mountains or hills that form a continuous elevated crest for some distance. The sides of the ridge slope away from narrow top on either side. The lines along the crest formed by the highest points, with the terrain dropping down on either side, are called the ridgelines. Ridges are usually termed hills or mountains as well, depending on size.

reference

Full Form	Category
Research Data Group	Academic & Science
Research Development Guidelines	Academic & Science
Reading (pa)	Airport Code
Radio Data Group, Inc.	Business
Restaurant Development Group	Business
Referral Development Group of Northern Kentucky	Business
Retail Design Group	Business
Resource Development Group Limited	Business
Ritchie Design Group, Inc.	Business
Reading	Community
Runnymede Drama Group	Community
Resource Development Group	Community
Rental Deposit Guarantee	Community
Redeclared Global	Computing
Ridge	Earth Science
Rotel Digital Gateway	General
Red Data Girl	General
Ruttle Design Group	General
Rather Delectable Gentlemen	General
Royal Dragoon Guards	General
Removable Double Glazing	General
Reduced Diameter Grip	General
Robert Del Grande	General
Rosenbaum Design Group	General
Rosetta Design Group	General
Reformed Druids of Gaia	General
Red Dot Gallery	General
Remote Data Gateway	General
River Design Group	General
Rallye Des Gazelles	General
Renault Dauphine Gordini	General
Roadside Design Guide	General
Restricted Delaunay Graph	General
RAYADRUG	Indian Railway Station
Reversal Discussion Group	Military and Defence
Reading Regional Airport, Reading, Pennsylvania USA	Regional
Rail Delivery Group	Regional
Regional Director General	Regional
Reading Railroad (Norfolk Southern)	Regional