Message posted by Dave Bethke on February 19, 2008 at 19:33:50 PST:
Preparations for an underground nuclear test, probably many years ago. Black wiggley lines are cable bundles for telemetry and control. They play out when the device is lowered. The point where they converge is the hole. Looks like test was never done.
In Reply to: Object? posted by LORANZ on February 19, 2008 at 19:07:22 PST: