Acquiring your location information enables you to use functions such as the Map Index
Click on the map index
page to find out the number of the map that corresponds with the township, range and section.
Query flexibility and the ability to perform index scans efficiently, as well as good selectivity from a combination of predicates in a where clause, means that a bit map index
is useful in a data warehouse.
On leaving the ferry at Folkestone he found the first Newcastle in the map index
and set off for the Midlands.
Slow progress is being made with the concept of developing an online map index
to the Library's map series collection, which comprises about 2/3 of the collection or around 400 000 map sheets.