Brazil's geological service says that one of the Amazon River’s main tributaries has dropped to its lowest level in 122 years, reflecting a severe drought that has devastated the Amazon rainforest and other parts of the country.

The drought is draining waterways and snarling the transport of grain exports and supplies that are the region's lifeline.

The Rio Negro is a major tributary of the Amazon River, the world's largest river by volume. The port sits near the "meeting of the waters" where the black water of the Negro meets the sandy-colored Solimoes, which also hit a record low this week.

A major port in the Amazon rainforest is seeing itslowest water level in 122 years due to drought:: Manaus, Brazil::Below-average rainfall - even through the rainy season - has plagued the Amazon and much of South America since last year,

MANAUS, Brazil (AP) — One of the Amazon River’s main tributaries has dropped to its lowest level in 122 years, Brazil’s geological service said Friday, reflecting a severe drought that has devastated the Amazon rainforest and other parts of the country.

One of the Amazon River's main tributaries has dropped to its lowest level ever recorded, Brazil's geological service said Friday, reflecting a severe drought that has devastated the Amazon rainforest and other parts of the country.

One of the Amazon River’s main tributaries has dropped to its lowest level ever recorded Brazil’s geological service said on Friday.