tunnel cave

tunnel cave

[′tən·əl ‚kāv]
(geology)
References in periodicals archive ?
Subjects with maintenance and repair work must be carried out are KakolanmEnki wastewater treatment plant and the River Aura shortfall tunnel cave spaces, Merimiehenkatu, Kaarina, Raisio and Raisio river pumping stations and Kaarina pressure drain measuring station.
Two bats were found at Tunnel Cave, approximately 160 km southeast of the barn and one bat was found approximately 280 km south at Colossal Cave in Kentucky.
After years and years in isolation Dantes eventually escapes when Abbe pops his clogs when the tunnel caves in and then goes on to discover hidden treasure - the gold bullion of every Sultan's dreams - in a rock cave by the seaside, as you do.