Blackrock, Clearwater Fake and the Armistice stuff are tied together at: 1. "West Passage" (Clearwater_Fake.431) from "Petrus Dream Series" (No_Justice.DG0) 2. "Petrus Dream Series" (No_Justice.b) to "Leopard Fake" (Leopard_Fake.71) through "Leopard Fake" then (Leopard_Fake.1) to (Centipede_to_Leopard.78) and thus to Blackrock Centipede entrance 3. Armistice stuff is real data and it is connected into the Clearwater fake stuff via Rampage and a fake horizontal leg through the Clearwater 4 to 5 sump to give correct base level. This is the main connection in Survex 4. Armistice is NOT conneted at Scumring due to an error too far! (48m) remains as an unclosed gap at Scumring (Clearwater_Fake.530) (Snow_Slopes.1) These two points are the same although not connected in the dataset. It is worth noting that the armistice stuff appears to be fairly accurate as a round trip from CW5 upstream sump, up Edwin's long cut, through armistice, big Uee, Rampage and up the Clearwater 5 streamway gives only a 6m error over a very long traverse. (Clearwater_5.801 Alans_Clearwater_5.801) 5. Metric and Imperial are linked in via the Centipede to Leopard surface traverse Whiterock to Blackrock connections are at: 1. Via "Api Chamber" and the "Eagle's Ramp" connected at Station "Rudang_Gallery_South.112". 2. "Firecracker" and "Downunder" (downunder2.4), connected at station "Firecracker.f339" in Firecracker Passage 3. Firecracker and Black Joke 2. This was not tied into a Firecracker survey cairn so is not connected in Survex. Hidden Valley connections are at: 1. Cobra entrance connected into Api master via a made up GPS fix at the entrance 2. All other caves are connected to this via surveyed legs either underground or surface