American Rivers coordinateas published, March 2026
Recovered from NACCrows American Rivers left blank
Corrected coordinatewas wrong in the source, fixed and cited
Audit flags
Rule 45 blocked the extensionthe dam sits on a different mapped channel, named or not; it had been taking its
species from a main stem 212 to 490 m off
Needs eyessame shape, but the channel at its feet was unnamed. None left: rule 45
was amended on 2026-09-13 to count unnamed channels, which moved all three into the
ring above
On a watershed range edgea containment match balanced within 75 m of the rim
Hover a ringed dam for the evidence (click to pin the popup): the channel at its feet, the
stream its species actually came from, and what the national river network calls
each. That last one is the only way to judge a channel our own fish layers left unnamed,
and it is checked against three dams where the answer is known before it is trusted
anywhere else.
West Coast dam removals
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Albers equal area conic · standard parallels 34°N / 48°N