Nyangores River

Major River in Bomet County

Nyangores River: A Lifeline for Masai Mara

Of the rivers flowing through Bomet County, the Nyangores, sometimes spelt as Nyongores, is the most important and, arguably, the most scenic. As it streams over, it is gentle and often calm in some places, and deep and a little unrestrained in others. Few people are brave or ill-advised enough to jump into the Nyangores for pleasure soon after the rains, owing to the muddy state of the water and the often deadly currents. Yet, at most times of the year it has several points of real beauty that are perfect for a swim or leisurely paddle as the weather heats up.

One of the highlights of the Nyangores is the sheet waterfalls at Tenwek, which is a favoured walking and swimming spot. Further upstream, it plays a pertinent role in upholding Kenya’s long-standing heritage as a safari destination. It is one of the perennial tributaries of the Mara River. The other main tributary is the Amala River. From its source, the Nyangores River flows for 94 km before joining Amala River, at Kaboson, to form the Mara River’s main stem. From here, Mara River flows for 395 km, through Masai Mara National Reserve, before draining into Lake Victoria. 

The headwaters of the Nyangores River is Napuiyapi Swamp at the Mau Complex. Along its course, the riparian areas are home to diverse flora and fauna. Salient among these are its species of fish and birds. The healthful river catchment area also provides important farmlands. Overall, the Nyangores River is a vital natural resource in Bomet County, contributing to the region’s biodiversity, economy and cultural heritage. Just the same, deliberate efforts to protect and sustain this river will be crucial for the well-being of both people and the environment in the area.

Demands on the Nyangores and Mara River are growing. Fast. The population of the river basin continues to increase. Key among the conservation concerns is the land conversion, at the expense of the Mara’s grasslands and forests. Likewise, the water quality and quantity in both the Nyangores and Mara rivers has altogether continued to deteriorate, largely pegged on poor land use practices on the upper catchment, lack of soil and water conservation structures on steeply sloped lands, cultivation along the banks, and planting of trees types injurious to the riparian.

And these are not by all the only ecological concerns. Like many rivers in Kenya, the Nyangores River faces pollution and sedimentation setbacks, particularly during dry seasons. Its sub-basin, chiefly agricultural, has a high probability of fertilizer usage, to increase crop production. The fertilizers, mingled with sewage effluents from Tenwek Mission Hospital and animal watering points will, at the last, result in increased downstream nutrient concentrations. Conservation efforts are underway to address these issues and ensure the river’s long-term health.


Kenya is blessed with several rivers, each playing a vital role in the country’s ecosystem, economy, and culture. The longest of these is the Tana, stretching approximately 1,000 kilometers from its source in the Aberdare Mountains to the Indian Ocean. Long, wide, short, seasonal, the rivers that crisscross Kenya each contributes to the natural beauty, biodiversity, and socio-economic success.


Touring Bomet County offers a chance to explore the lush landscapes, cultural heritage, and natural attractions of Kenya’s Rift Valley region. Whether you’re interested in nature, culture, or adventure, Bomet offers a diverse range of attractions and activities to explore. It is also a jumping-off place to Masai Mara.

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What’s The Air Like In Bomet?

Rainfall is evenly distributed in Bomet, except for the short dryer season in January and February. Temperature levels range from 16oC to 24oC with the coldest months between February and April; and July.

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