Merume is also the name of a nearby mountain,[1] which is 30 miles east of Mount Roraima.

First Falls is a feature of the river which also limits travel by boat.

[3] Merumite was discovered in 1937 appearing as black grains among diamonds and gold in the river gravel.

[3] In 1958, merumite was determined to be a complex aggregate of eskolaite and chromium, X-ray diffraction data showed it contained eskolaite, guyanaite, bracewellite, grimaldiite, and mcconnellite.

[4] Kamakusa was a settlement along the river, and formerly a government center.