Updated Android support

iOS 16 support
New route commands in Edit menu.

Fixed software  problem with menu item Locate/Compass

Added Grand Canyon Geology map layer.
GPS track update increased to every 50 feet.

Under menu option Locate... GPS... Track - track is displayed and profiled as it is accumulated.

Added USGS 100K topo maps (in addition to existing 24K topo maps).
Added background GPS track creation.
Cache moved to Map menu. Cached areas can be explicitly selected.