Part of the map may appear cut off due to how FAA charts are published and displayed. The FAA provides charts as individual sections rather than seamless maps, requiring them to be "stitched" together. While ForeFlight works to make these transitions as smooth as possible, some visible seams may occur where charts join.
Seams
Chart seams are visible lines where two charts meet. The image below shows a seam running north to south near KBGR, with the chart on the right side sitting on top of the chart on the left.
In areas with seams, use the Map Touch feature to bring the desired chart to the foreground for a clearer view of the information.
Alternatively, tap and hold on the map near a seam to view a pop-over displaying nearby information, such as airports, navaids, or airspace.
TAC Chart Boundaries vs. Seams
If the issue appears near a Terminal Area Chart (TAC) boundary, it may not be a seam issue but a display of overlapping charts. This type of area can be identified by a white boundary line across the map.
In these cases, zoom out to hide the TAC chart or use the Map Touch feature to prioritize the desired chart.
By understanding map layers, map display can be improved in areas where seams are visible.
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