The first paragraph of "History" is rather grammatically confused; please check. Also, isn't the Marojejy Massif a group of mountains, instead of a single mountain?
"Despite a scientific survey of the mountains in the region by the 1929 Mission Franco-Anglo-Américaine,[4] it was not surveyed until 1937" sounds very self-contradictory. Do you mean that while other mountains in the region were surveyed, Marojejy was not? Also, this 1929 Mission was the same one that brought us Monticolomys, and I think it deserves a red link.
"The massif was not formally described"—what does "formally described" mean in the context of a mountain?
I'm not sure how geologists say it. The sources say, "the MarojejyMassif was first described by Professor Henri Humbert," so I followed their wording, and treated it like a biological species description. I added "formally" in a feeble attempt to clarify between the earlier survey and the latter description. – VisionHolder « talk »21:31, 12 February 2011 (UTC)[reply]
"Because of the wide range of habitats within the park, many of its plants and animals are endemic to the area."—the one does not follow from the other
"The vegetation of Marojejy National Park is extremely diverse due to the various microclimates, with the wet eastern slope showing faster growth, the dry western slope exhibiting slower growth due, and growth on the ridge tops hindered by high winds and poor soils."—check grammar; not sure what you mean
I'm sorry... I wrote this at 3am, and my collaborators who did the proofread and said it all looked good. ;-) Thanks for catching that badly messed-up sentence. – VisionHolder « talk »19:25, 12 February 2011 (UTC)[reply]
"Madagascar's highest but most accessible peak."—isn't Maromokotro higher?