T.TRGD interdune trough(s)

a long wind-swept trough between parallel longitudinal dunes

1,087 features in 11 countries.

#	Country	Features	Share of the world
1	Algeria DZ	375	34.5 %
2	Saudi Arabia SA	327	30.1 %
3	United Arab Emirates AE	140	12.9 %
4	Mali ML	102	9.4 %
5	Mauritania MR	71	6.5 %
6	Yemen YE	37	3.4 %
7	South Africa ZA	16	1.5 %
8	Niger NE	9	0.8 %
9	Oman OM	8	0.7 %
10	Pakistan PK	1	0.1 %
11	Tunisia TN	1	0.1 %
	Total	1,087