○○○ catalogue ⪢⪢
Most of these artifacts and ancient settlements can be cataloged and understood by archeologists and scientists quite easily.
http://qindex.info/i.php?x=21615

○○○ latter ⪢⪢
http://qindex.info/i.php?x=23672

○○○ permanent ⪢⪢
http://qindex.info/i.php?x=23827

○○○ erosion ⪢⪢
http://qindex.info/i.php?x=23828

○○○ sea stack ⪢⪢
http://qindex.info/i.php?x=23832

○○○ Grand Canyon ⪢⪢
http://qindex.info/i.php?x=23835

○○○ scrape ⪢⪢
http://qindex.info/i.php?x=23837

○○○ fjord ⪢⪢
http://qindex.info/i.php?x=23838