headwaters

plural of headwater
as in tributary
the beginning part of a stream the first exploration of the Missouri River from its mouth to its headwaters was made by Meriwether Lewis and William Clark in the early 1800s

Synonyms & Similar Words

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Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Recent Examples of headwaters According to the post, Kentucky State Police Aviation saw smoke in the area, and wardens and search and rescue personnel were able to access the location, near the headwaters of Cave Run Lake, using a boat. — Caroline Neal, Louisville Courier Journal, 11 Sep. 2026 Others, like salmon, return upstream via Metro-North or the Long Island Rail Road to the suburban headwaters in which they were born, in order to spawn. — Christopher Bonanos, Curbed, 2 Sep. 2026 Clear Creek County Commissioner George Marlin makes a compelling case that alone, his small county of about 9,000 residents could never fund the mitigation needed to protect the headwaters of Clear Creek. — Megan Schrader, Denver Post, 27 Aug. 2026 The agreement was made at a time when the region had a smaller population and benefited from wetter years, with much more snow to feed the river’s headwaters in the Rocky Mountains. — Laura Paddison, CNN Money, 21 Aug. 2026 Following an exceedingly warm year that has left the Colorado River’s headwaters in the Rocky Mountains largely snowless, Lake Mead is nearing a record-low level. — Lila Seidman, Los Angeles Times, 16 July 2026 Its headwaters are in Indian River County, its mouth in the Atlantic near Jacksonville, which is the furthest place Sanders Fish House delivers its wild catch. — Amy Drew Thompson, The Orlando Sentinel, 28 June 2026 Grinnell Glacier Trail, Glacier National Park, Montana Covering around a million acres, Glacier National Park provides the headwaters for streams that flow to the Pacific Ocean, the Gulf of Mexico, and the Hudson Bay. — Stacey Leasca, Travel + Leisure, 26 June 2026 Lake Assinica in the Broadback headwaters has attracted world-wide attention for its giant squaretails the past two years. — Marc Terziev, Outdoor Life, 25 June 2026
Recent Examples of Synonyms for headwaters
Noun
  • The Shahtoot Dam, which would be built on a tributary of the Kabul River, could provide water for more than 2 million people in the city.
    — Laura Paddison, CNN Money, 6 Oct. 2026
  • The Arapiuns flows into the Tapajos, one of the Amazon River’s major tributaries, across waterways so vast that navigating them can feel like crossing the open sea.
    — ABC News, ABC News, 6 Oct. 2026
Noun
  • According to four people familiar with the situation, the podcast has been a particular source of friction between Thompson and Goldberg.
    — Max Tani, semafor.com, 5 Oct. 2026
  • Yet without fully mature local ecosystems, Southeast Asian factories source inputs from China to keep production running.
    — Angelica Ang, Fortune, 5 Oct. 2026

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Cite this Entry

“Headwaters.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/headwaters. Accessed 9 Oct. 2026.

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