From their post:
FMT1 Trilithon Stone Portal
FMT2 Stone Circle
FMT3 Standing Stones
Nick Lund and I have been working on some rules for the range and we wanted to make terrain items more than table decorations so stone circles and standing stones are magical-power enhancers and the trilithon is a ley-line gateway. Future terrain pieces will include Roman roads (magic nullifiers), barrow tombs, Pictish statues of the Elder Gods and Pictish lairs.