| Filename | Description |
|---|---|
| bcra3.svx | BCRA survey grade file. |
| bcra4.svx | BCRA survey grade file. |
| bcra5.svx | BCRA survey grade file. |
| bcra6.svx | BCRA survey grade file. |
| bcra8.svx | BCRA survey grade file. |
| sigma.svx | Sigma Cave, Main file, contains all the includes. |
| aragonit.svx | Sigma Cave, Aragonite Canyon. |
| downstrm.svx | Sigma Cave, downstream section from the top of "Fallaway Drop" then along streamway to sump. |
| entlower.svx | Sigma Cave entrances plus nearby cave entrances. |
| entupper.svx | Sigma Cave upper entrance (W415) inwards to main chamber. |
| iota.svx | Sigma Cave, from the base of the Funnel Room to Alpha Amble, Upside Down Passage, Bat Corner & Iota Grotto. |
| mainchamber.svx | Sigma Cave main chamber and upper level loops. |
| medusa.svx | Sigma Cave Medusa room, connects to 42 section & main. |
| nudome.svx | Sigma Cave, Downstream section from where the passage widens, up the sticky ramp to what used to be called Nu Aven. |
| omega.svx | Sigma Cave, Omega Chamber |
| upstream.svx | Sigma Cave, upstream section from the top of "Fallaway Drop" then along the streamway to "Knockers Cavern Two". |
| tatshawl.svx | Tattered Shawl Cave W161 survey. |
Processed date: Fri, 21 Nov 2025 at 11:45 PM