This is a link page for railway, road and waterway tunnels, including hydroelectric intakes and tailraces and gun battery tunnels. It includes artificial chambers but excludes New Zealand caves and New Zealand mines.
This is a link page for railway, road and waterway tunnels, including hydroelectric intakes and tailraces and gun battery tunnels. It includes artificial chambers but excludes New Zealand caves and New Zealand mines. (en)
This is a link page for railway, road and waterway tunnels, including hydroelectric intakes and tailraces and gun battery tunnels. It includes artificial chambers but excludes New Zealand caves and New Zealand mines. (en)