Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_53123 ( "City district" text, "Area km\u00b2" text, "Population 2007 census(hab)" text, "Housing (2007)" text, "Density (hab/km\u00b2)" text, "Elevation msl" text )

### Question ###
What is the density of the city with an elevation of 3,400 msl?

### Accurate SQL ###

SELECT "Density (hab/km\u00b2)" FROM table_53123 WHERE "Elevation msl" = '3,400 msl'