Poor for marine navigation. Do not purchase.
US Coastal lacks depths for major sections of chart. It refers to “Notes” which are not available so that major areas of navigation lack an depth, obstruction or other information necessary for navigation.
Example, Astoria, OR, entrance to Columbia River. All areas of channel navigation lack any depth information or even channel marks. Large areas of white with no detail and Garmin Charts provide no detail, no GPS location for there areas rendering the chart useless and dangerous.
Desdemona Sands covers 20% of Astoria Bay but has ZERO charting info for depths at high and load tide.
Additionally make does not show tidal currents on the map as tide shifts. This is very useful information that Garmin does not show. NobelTec does show that information.
Surprisingly poor product from Garmin.
Do not purchase.
ORRN1 about
Garmin BlueChart® Mobile