title: Simple latitude/longitude + integer database?
body: <p>Is there a fast, persistent database for storing a <strong>latitude, longitude, and integer</strong> value for quick geo-spacial lookups?</p>
  
  <p>The idea is that I have lots of ID's of different things and I want to search by lat/lon squares for all the ID's in a given location.</p>
  
  <p>My first thought was the creative use of key-value store like membase or redis. However, I can't figure out a method to search based on properties like latitude and longitude short of creating set sized lat/lon blocks and placing all ids as the value (which doesn't work very well).</p>