Also called Chalagule
Choma is one of three waterfalls named in the Ulugurus by Morogoro Municipal Council, which lists them as Kibwe, Choma (Chalagule) and Hululu. The alternate name is the single most useful thing on this page: a guide who does not recognise “Choma Waterfalls” may well recognise Chalagule, and there is a Choma village in the same country, which the council separately names as a place for village visits. Asking for “the Choma falls” can therefore get you a waterfall, a village, or a blank look.
What is and is not documented
Tanzania Forest Services, which manages the Uluguru Nature Forest Reserve, lists waterfalls generally among the reserve’s attractions and names only Hululu specifically — as a pond to swim in and as a site used for meditation and worship. It does not name Choma. The municipal council names Choma but publishes nothing about it: no height, no river, no access route, no walking time.
Nothing further is given here, because nothing further is published. In particular, no height is quoted. The same council page that names Choma also gives the Uluguru reserve the area and the endemic primates of Udzungwa Mountains National Park and reads as machine-generated, so its concrete numbers are not usable even where they exist. Its list of waterfall names, by contrast, is the kind of local detail that is hard to fabricate and is corroborated in outline by the forestry agency.
What a Uluguru waterfall walk involves
All of the falls on this side of the massif are reached on foot from a road head, on paths that cross farmed land before entering forest. There is no marked trail network, no published route and no signage. TFS’s own list of activities for the reserve includes forest walking, swimming in the Hululu pond and worship at the Hululu waterfalls and ritual sites, which is a reminder that water in these mountains is frequently in ceremonial use.
The practical consequence: ask your guide before swimming anywhere, and accept a no without argument. A pool that looks like a swimming spot may be one and may not.
Honest verdict
Choma is a name on a council list rather than a developed site. It is worth asking about locally in Morogoro, where guides know the hill and can say whether the walk is currently straightforward, and it is not worth planning a day around from a distance. A traveller who wants a waterfall walk in the Ulugurus should ask for whichever of Kibwe, Choma or Hululu the guide rates that week, given rainfall and the state of the path.
Anyone whose main interest is waterfalls rather than this particular range will get far more from Sanje in the Udzungwa Mountains, which is a documented park route with a published description. The Ulugurus reward walking for their own sake: Eastern Arc forest, terraced farmland, endemic birds and a mountain that makes its own weather. The falls are incidents along the way rather than the point.