Garmin Blue Chart g3 Vision HD VUS517L Alaska South - SD Card Detailed coverage of Alaska from Prince of Wales Island to Point Lay on the North Slope including Glacier Bay the Kenai Peninsula and the Aleutian Chain in full. Bathymetric coverage of the Gulf of Alaska Bristol Bay and United States waters in the Chukchi and Bering Seas and along the entire Aleutian chain including the Surveyor Sea channel Aleutian Trench Umnak Plateau Chirikof Basin and Hope Sea valley. High-resolution relief shading combines color and shadow to give you an easy-to-interpret clearer view of bottom structure than contour lines alone 3-D View: Yes Aerial Photos: Yes Card Format: SD Port Plans: Yes Box Dimensions: 1 H x 6 W x 8 L Weight: 0. 3lbs.