Far off the main roads, tourism here is even sparser than the route from Lushoto to Mtae, but the violet-covered hills and butterfly-filled cloud forests do lure some visitors, who can access the park independently or through a tour.

BBC: A tranquil slice of Tanzania

When the sun finally went down, the sky above the hills remained pale blue, the cloud bottoms all salmon and orange.

NPR: Excerpt: 'World Made By Hand'