I am in the process of removing the county "Le Léman (VS)" in region "Valais". It's not a real county, covers water only. In a lake where the rest isn't covered.
Only two geocaches exists in the area:
geocaching@pgc-db-05/geocaching> select gccode, region, county, archived from caches_view where country = 'Switzerland' and county = 'Le Léman (VS)';
+---------+--------+----------------+----------+
| gccode | region | county | archived |
+---------+--------+----------------+----------+
| GC616D6 | Valais | Le Léman (VS) | 1 |
| GC7N30A | Valais | Le Léman (VS) | 0 |
+---------+--------+----------------+----------+
2 rows in set (0.001 sec)