The Jubilado series is a series of nine caches set out in conjunction with the Winter Caching Games #10. The first eight of these each have a number hidden with them which is one of the digits required to find the coordinates for the ninth and final stage. Further information may be found on each individual cache page.
If you are looking for this géocache, your GPS may not show the neighbourhood streets quite yet. There used to be a road here, but it's not accessible by vehicle any more, so it's a great place to go for a walk on the edge of the city. Hides out this way aren't too popular, but some day it'll be more accessible.
You can also find the number for the "U" in the Jubilado Final at this location. If you find the cache, you'll see the number.