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River Levels, Map & Graphs — 18 websites ranked by shared content topics, category and on-page relevance.

Each result shows its full tech stack, contacts and AI-policy — not just a name · Browse all sites in Environment →

Domain	Match	Title	Country/Lang	Category	AI files	Contact	AI-protection
salishcenter.org ↗	55 match shared topic	Home - Salish Center for Sustainable Fishing Methods	en	environment WordPress WooCommerce	robotsllmsaihumans	emailphone	partial · 2
joincca.org ↗	55 match shared topic	Coastal Conservation Association: Join CCA	en	environment WordPress	robotsllmsaihumans	emailphone	none
americanrivers.org ↗	35 match shared topic	Life Depends on Rivers	en	environment WordPress	robotsllmsaihumans	emailphone	none
state-radon.info ↗	35 match shared topic	USA Radon Levels	en	environment	robotsllmsaihumans	emailphone	none
whiterivermg.com ↗	35 match shared topic	White River Marine Group	en	fishing-sports	robotsllmsaihumans	emailphone	none
greenmap.org ↗	35 match shared topic	Home \| GreenMap.org	en	environment	robotsllmsaihumans	emailphone	none
rivers.gov ↗	35 match shared topic	National Wild and Scenic River System \| Rivers.gov	en	environment Drupal	robotsllmsaihumans	emailphone	none
riverkeeper.org ↗	35 match shared topic	Riverkeeper - Protecting the Hudson River & Safeguarding Drinking Water	en	environment Sanity	robotsllmsaihumans	emailphone	none
salmonsafe.org ↗	35 match shared topic	Salmon-Safe protects rivers, native salmon and watersheds in the Pacific Northwest \| Salmon-Safe	en	environment WordPress	robotsllmsaihumans	emailphone	none
riversideanglers.com ↗	35 match shared topic	Professionally Guided Fly Fishing in Montana,… \| Riverside Anglers	en	fishing-sports	robotsllmsaihumans	emailphone	none
powerplantmaps.com ↗	35 match shared topic	Map of Coal, Gas, Nuclear, Hydro & Biomass Power Plants	en	environment	robotsllmsaihumans	emailphone	none
refinerymaps.com ↗	35 match shared topic	Map of Oil & Gas Refinery Health & Safety Issues	en	environment	robotsllmsaihumans	emailphone	none
epa.gov ↗	28 match shared topic	U.S. Environmental Protection Agency \| US EPA	en	environment Drupal	robotsllmsaihumans	emailphone	none
usgs.gov ↗	28 match shared topic	USGS.gov \| Science for a changing world	en	environment Drupal	robotsllmsaihumans	emailphone	none
guidesly.com ↗	28 match shared topic	Book the Best Fishing Charters & Fishing Guides at Guidesly	United States~ en	fishing-sports	robotsllmsaihumans	emailphone	none
fsc.org ↗	28 match shared topic	Home \| Forest Stewardship Council	en	environment Drupal	robotsllmsaihumans	emailphone	none
fws.gov ↗	28 match shared topic	U.S. Fish and Wildlife Service \| U.S. Fish & Wildlife Service	en	environment Drupal	robotsllmsaihumans	email phone	none
tree-nation.com ↗	28 match shared topic	Join us to reforest the world	en	environment	robotsllmsaihumans	emailphone	none

How the match score works

Each match is a 0–100 similarity score — the higher it is, the more two sites resemble one another. It’s computed automatically from our own crawl data (never from what a site says about itself) by combining several independent signals, so a high score means several of them point the same way:

shared topics how many of the same fine‑grained content topics (IAB sub‑categories) both sites cover — the main signal.
same category whether they sit in the same business / industry category.
content & title how closely their titles and page descriptions line up in wording and meaning.

No single signal decides the result — they’re blended together. Treat the score as a way to rank candidates rather than an absolute percentage; the chips on each result show which signals contributed.