Columbia River — Reach 1 of 5
74 km of the Columbia River navigation corridor, with channel depths from USACE hydrographic survey.
- Recorded max
- 117 ft
- Species
- Rainbow Trout, Chinook Salmon, Coho Salmon, Steelhead
- Public access
- 1 official record
Split-water fishing maps
Fishing maps for the currently published USACE-surveyed Columbia River reaches.
Built for useful map scale
The available survey footprint is published as separate long-river reaches; the overview only lists reaches that are currently live.
One page per mapped area
74 km of the Columbia River navigation corridor, with channel depths from USACE hydrographic survey.
72 km of the Columbia River navigation corridor, with channel depths from USACE hydrographic survey.
Choose with the evidence visible
The released set contains 2 survey-backed reaches and 0 modeled reaches. Their published maximum depths run from 90 to 117 ft, with a median of 117 ft. Those numbers make scale differences visible, but they do not make sections interchangeable: contour provenance, access, species evidence and local structure remain specific to each child map.
Start with the section closest to the water you actually plan to fish. Then compare its depth-data label and species roster with an adjacent section before treating a pattern as system-wide. A survey-backed child is the stronger choice for precise breakline planning; a modeled child is broader reconnaissance and should be checked against sonar and conditions on the water. Return to this overview whenever you cross into another mapped reach, pool or coastal section.
Same child-page contract
Planning questions
The available survey footprint is published as separate long-river reaches; the overview only lists reaches that are currently live.
2 released maps use surveyed or official agency bathymetry. Each child keeps its own provider, product, datum and not-for-navigation disclosure.
No. Species, forage, access and fishing spots remain scoped to each child map and retain their evidence labels.