quarter quarter sections

Question

Original User: hlyell

Anyone know of a (fairly recent) tool or method that will yield a grid that equally divides sections into 16 equal quarter quarters?

Thanks.

plan.jpg

historic.jpg

join_unjoin.jpg

two tables cadaster.jpg

DanielAshford · Answer

Awesome!  Thanks so much, Ian!  An absolute *HUGE* time saver!  I love the extra touches you've added to the toolbox since this video was (Create Q Labels, Create Q Sections, the default labeling of the points.)  However, I could be wrong here, but I've always heard that you should "work your way back" when describing QQs of a section.  So, for instance, where your script defaults with the value of "NWNE" to indicate the NE quadrant of the NW quadrant...I've always heard it referred to as the "NE Quarter of the NW Quarter" and have seen it written as "NE/4 NW/4."  So, I would think the label should be "NENW" -- or, at least, that's how I would use it (although, I actually will probably use "NE/4 NW/4.") Granted, it's nothing for me to change this in the tool before I use it, but I wanted to share this information with you. Thoughts?I recently made a couple tools to do this. One tool creates the quarter quarter sections from an existing section grid and the other tool labels the quarter quarter sections how you want.

You can view a video of the tool and download the toolbox here:
http://ianbroad.com/creating-quarter-quarter-section-grid-python/

Hope it helps.

Anonymous User · Answer

Original User: fconkling

In responding to this thread, it is important to remember that breaking down a section, or even a quarter section in the Public Land Survey System is NOT a mathematical exercise. The correct breakdown of the section is completely dependent on the location of the monuments placed by the original government surveyor and as shown on the original plat of survey.

In most regular townships, and excess and shortages are placed in the northern and western tier of sections, commonly called "closing sections" and even that is dependent upon what the surveyor found in the field.  The breakdown is also dependent upon any water features contained within the township that may cause fractional sections or government lots where "normal" breakdowns are not possible.

Further reading is available here: http://www.blm.gov/cadastral/Manual/73man/id147.htm under subdivision of sections.

Good luck.

Frank Conkling, 
Panda Consulting

Anonymous User · Answer

Original User: ianbroad

I recently made a couple tools to do this. One tool creates the quarter quarter sections from an existing section grid and the other tool labels the quarter quarter sections how you want.

You can view a video of the tool and download the toolbox here:
http://ianbroad.com/creating-quarter-quarter-section-grid-python/

Hope it helps.