Hazard Zone Template
The limit of HAZARD ZONE is the extent of the area that is dangerous to navigation. This
extent is provided to the USGS by NOS.
If HAZARD ZONE contains rocks, shoals (bars), or wreckage; and HAZARD ZONE
is on an existing NOS chart, or for a topographic/bathymetric edition only, if
HAZARD ZONE is on the final compilation provided to USGS by NOS, then
Source Interpretation Guidelines
Capture HAZARD ZONE as the area enclosed by the dotted line symbol.
Any symbols within the dotted line are captured independently under the
appropriate feature. (e.g. ROCK, REEF, WELL etc.)
There will be features on topographic edition maps produced prior to 2/1/61, which
do not meet capture conditions. These will not be captured. (Anchorages, barges,
buoys, dolphins, duck blinds, dumping grounds, fish stakes, fish traps, foul areas,
harbor limits, lightships, limiting danger lines, measured courses, pilings, project
depths of channels, restricted areas, sailing lines, sewage outlets, snags, sunken
rocks, sunken wrecks, tide rips, breakers, types of offshore bottom).
Revision – General
Revision – Standard
Revision – Limited
Do not revise. Retain existing features.
About Feature Templates