look.at.the.rock.again..........find.a.crack.that.extends.to.the.ground.usually.it.is.the.east.side.of.the.rock.there.are.various.cracks.on.the.rock.===look.for.the.cracks.that.leads.to.the.ground.those.cracks.represents.the.tunnel-entrances.find.the.compass.bearing.if.you.stand.on.the.stone...you.will.find.the.entrance.there.=========from.the.said.entrance.you.will.find.the.tunnel.entrance.filled.with.backfilled.earth.and.several.traps....but.the.cracks.on.the.stone.will.give.you.an.idea.of.how.many.tunnels.are.there.,how.manny.chambers.are.there.how.many.tunnel.systems.are.there..........and.their.positional.bearings.