August 9th 2017 - SLUG Meeting DiGISt

Minutes of the 33rd Quarterly Salt Lake GIS Users Group (SLUG) meeting, held on August 9, 2017, from 11:30 am to 1:30 pm at the Department of Natural Resources (1594 W. North Temple) in Salt Lake City. There were about 96 in attendance.

This meeting’s lunch was sponsored by UGIC. If you have any contacts that would be willing to ‘sponsor’ a lunch by providing food/ drinks in exchange for their advertising at the meeting, contact Tom Toronto, SLUG Board member.


Tom Toronto, SLUG Board

·         Welcome to DNR. Thanks to DNR for hosting and UGIC for sponsoring the lunch.

·         Thanks to Ray Montgomery for being on the board since the beginning. We have a new board member, Zlatko Grebenar from Sandy City. Kaitlin Marousis is also leaving the board; thanks to Kaitlin for being on the board and all her efforts. Her position on the Board is now open. If anyone is interested in serving contact the SLUG group at

Bert Granberg, AGRC

·         Status of some GIS legislation in Washington, D.C. One specific bill would be improving COGO.

Dave Henrie, UGIC

·         UGIC Conference 2018 will be held in Vernal. More details to come.


Light Pollution                                                                                    

Mike Maynor

Various studies have been conducted on light pollution over the decades. It started as mainly research in the field of astronomy, but has expanded to studying the effects of light pollution related to ecology, environment, economy, crime and geography. Light pollution is very localized and solutions can be found at the local level. Mike mentioned North Fork Park just outside of Ogden, which is very accessible yet, provides a unique dark sky experience for people living along the Wasatch Front. Through education, the effects of light pollution can be solved and studies found that people accepted dimmer lighting after learning more about the different options and it’s effects.

ArcGIS API for Python

Ryan Cosby, Gateway Mapping

Ryan talked about the ArcGIS API for Python and the ability to access ArcGIS Online content and users in the scripting environment. A good code editor to start with is Jupyter Notebook and a great resource for API references can be found HERE. Showed several examples like generating a map on the fly, query specific feature classes and display in table. The API can also be utilized to count # of layers in feature service, check how many credits an organization has left among many other possibilities.

Geography Humor Segment 

Zlatko Grebenar, SLUG Board

Ellen meets a 5-Year-Old Geography Expert. You can see this clip HERE.

You can see many of the videos we’ve shown (not including the above ones) at SLUG meetings on our own YouTube channel HERE.

Brian Head Fire

Buck Ehler, – Utah DNR

The Brian Head Fire burned more than 71,000 acres and cost $33 million to fight. It burned for 6 weeks and was contained by late July. Incident command post was in Parowan where four GIS specialists worked and produced maps 16 hours a day. Buck showed daily progression maps of the fire and how Survey123 was used to collect and display fire data. In the end, there were no fatalities or injuries due to the brave efforts of many firefighters.

Thank you to our presenters and our venue. If you have any ideas for a presentation or any other matter, please contact a SLUG board member. We appreciate your interest and support!