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As of May 11 2010
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Pocket Queries are just one example of the benefits of subscribing as a premium member of Geocaching.com. Becoming a premium member helps defray the cost of the servers and maintenance (and development) for the Geocaching.com database, but there are perks to being a premium member as well. As quoted on the site:
So - Pocket Queries allow you to get a subset of caches e-mailed directly to you. For example, do you like only traditional caches and don't really care about Virtual Caches? Pocket queries can e-mail you you a set of traditional caches that you haven't found within 100 miles from your home coordinates in one of two formats readable by EasyGPS or ExpertGPS or various other home grown software. These computer files can then be loaded directly into your GPS via a connecting cable. You can search by proximity to a set of coordinates (your home?) or for caches within a geographical boundary (your state/country). You mention various formats? What formats can I receive this data in?
Definitely not. The GPX and LOC are for use with software and your GPS. And you can use software like GPXSpinner and Plucker to create files that are viewable on handheld devices. How often can I get the cache lists e-mailed to me? Once daily, and up to every day of the week if you so desire (or only on specific days). This reduces the load on the Geocaching.com servers, especially since the program to create these files is run in the middle of the night in the US, when the servers see their least amount of traffic. How many different queries can I have? You can save 40 separate sets of criteria, but you can only set 5 of them to be mailed to you on each calendar day (per premium membership). Is there a maximum number of caches on the list, or could I just query the entire US? Each query will return a maximum number of 1,000 caches. This is also typically the maximum number of waypoints that a GPS will store. Examples of Uses of Pocket Queries
You can start off with Geocaching.com's list of software. On that page are links to several pieces of software that will manage and assist you in using GPX and LOC files. One favorite is ClayJar's program - Watcher. It is available at ClayJar's website (look for the largest number). The other one that is an extremely powerful database manager is GSAK (Geocaching Swiss Army Knife). If neither of those suit your fancy, ask for suggestions in the GPS Units and Software forum. |
Simplest Setup
More Complex Talk about AND and OR, and how to choose criteria First, we need a lesson in computer language and logic.
While this may seem strange to bring up in pocket queries, understanding this is essential to getting exactly what you're looking for. The single biggest mistake in PQs is putting too many limiting criteria on the data, and getting no results. If you look for caches that you HAVE FOUND AND caches that you HAVEN'T FOUND, you'll get back a result of no caches. Using AND means that the individual cache must meet both criteria, and you can't have a single cache that you both have found and haven't found. So, what do you want? Caches within 50 miles that you haven't found? Remember that there's an upper limit of 1,000 caches returned in the PQ. In densely cached areas, this might be a problem. We're going to use a hypothetical query for the purposes of education. We're going to specifically look around my home coordinates (roughly N 41° 38.500 W 088° 13.500) and look for nearby (within 50 miles) new (placed in the last month) single stage caches that I haven't found, that also contain a Travel Bug. | ||||||||||||||||||||||||
From the /Pocket page, click Create a new query and you'll have a page that looks like the image to the right.
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Scrolling down...
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This is the proximity or region section. For the purposes of demonstration, we're going to do a proximity search. I'll talk about regional searches in the section on Multiple Regions.
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| Attributes This is one of the more complicated sections. Read the section on Attributes and PQs. For the most part, leave it blank unless you REALLY know what you're doing. |
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Almost there...
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Attributes and PQs
The Pocket Query Generator has the ability on its page to select which attributes to INCLUDE and which attributes to EXCLUDE. But understanding how it all works is a detailed lesson in logic. For our example, we'll look at the "Dogs Allowed" attribute. Right now, there are 244 caches within 10 miles of my home.
The key point to notice is that including Dogs Allowed=NO is not the same and excluding Dogs Allowed=YES. Back to the top. If you're doing a search for regions instead of proximity to a set of coordinates (every cache that is in Rhode Island combined with every cache in Connecticut), you can choose the State radial button, and click the first state and scroll the little list until you find the next state. Then hold down your CTRL key and click the second state. If you want ALL states, click the first one (Alabama) and scroll down to the last one and hold the SHIFT key to click on that one (Yukon Territory). Same thing is true for countries. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
The image to the right shows a snapshot of the pocket page from my computer on May 11, 2010 at about 1:00 P.M. CDT. Every query has a separate row and a grid to check box which days of the week to run the query to send to an e-mail box. On the far left is the "Preview Link." Clicking that preview link on a query line will show you the results immediately for that Pocket Query. It doesn't contain the GPX information, and can only show you 20 caches at a time, but at least it lets you know what the PQ will contain prior to sending it via e-mail.
NEW IN MAY 2010
If the query is more than 500 caches, you'll receive a notification that the query is completed and ready to be downloaded at Geocaching.com/pocket on the download tab.
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Why can't I get my Pocket Queries? There are a couple of things to check.
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Here's what the Chicago area looks like with my PQs (May 2010):Date Placed Between| Caches | in PQ 200-Jan-01 - 2006-Apr-06 | 989
| 2006-Apr-07 - 2007-Aug-31 | 991
| 2007-Sep-01 - 2008-May-30 | 994
| 2008-May-31 - 2008-Nov-23 | 991
| 2008-Nov-24 - 2009-May-15 | 984
| 2009-May-16 - 2009-Sep-01 | 990
| 2009-Sep-01 - 2010-Feb-11 | 993
| 2010-Feb-12 - 2010-May-08 | 849
| 2010-May-09 - 2099-Dec-31 | 9
| Total | 7,790 | |
| Center the Geocaching.com map on the area you want, with the zoom magnification you want. Premium members have a link "Create Pocket Query" that creates a Pocket Query based on the center of the map and the radius of the farthest cache in the window. Note - even if you limit the map to only view traditional caches, and hide your fiends or your owned caches, the pocket query criteria will ONLY pass the center and radius information to the new query. |
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The second way is a little more more tedious but it will give you a more precise result.
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Last Updated: Feb 3 2011