Aug 5, 2015

Version 4.1 and 4.2 December 2013
Fixed map Linear Features display problems.
Made GPS optional so it will install on non-GPS tablets.

Version 4.0 April 2013
New map layers added: boreholes and linear features.
Links from boreholes to scanned borehole log images.
Bedrock geology and superficial deposits separated into individual layers.