Synergis: the GIS user group for Ithaca NY and the surrounding area

SynerGIS is a community of GIS professionals, managers, researchers, and students from Ithaca, NY and the surrounding area. We hold almost-monthly meetings that are open to anyone interested in learning more about GIS and all things geospatial. More about us...

Jan 4, 2022 - HistoryForge

When: November 02, 2021, 1:00pm

We are pleased to announce the next Synergis meeting “Mapping Historical Addresses-HistoryForge Ithaca and Beyond” by Eve Snyder, HistoryForge Project Coordinator and Claire Lovell, Auburn HistoryForge. The meeting will be on Zoom January 4 at 1 pm. We will send a link when we get closer.

HistoryForge is an open-source web application which combines historical census records, maps, photographs, and other sources to create an interactive web environment to explore local history. Eve Snyder and Claire Lovell will discuss mapping historical addresses using HistoryForge.

They will also discuss their use of MapWarper to georectify the historic maps and plans for a future project of expanding into the Town of Caroline and other areas in Tompkins County that have fewer maps and addressing resources.

Jul 26, 2018 - Mappy Hour

When: July 26, 2018, 5:00pm
Where: The Westy

A long-overdue Mappy Hour, to catch up on all the spatial things in our lives… Join us at the Westy on State Street on Thursday, July 26 We’ll start around 5pm. Guests are welcome, so bring a friend!

Feb 9, 2018 - Mappy Hour

When: February 09, 2018, 5:00pm

Let’s get together and talk about maps. We’re going to try out a new spot: Liquid State Brewing.

Dec 12, 2017 - Maps of Tompkins County

When: December 12, 2017, 3:00pm

It seems like December 12 at 3:00 is the most convenient time to meet up at the History Center to gather and explore their Maps of Tompkins County Exhibition. This was just brought up at GIS Day as an informal gathering to explore what the Center has to offer. If you are available, come see what the History Center has displayed in the form of local maps for the City.

From their newsletter:

The Maps of Tompkins County

From November 14 through mid-2018

Maps are powerful and engaging forms of visual communication. They show us our world, and the myriad smaller places within it. Maps simplify, scale down, and organize what otherwise would be too large, too distant, or too complex to be seen.

Maps fulfill a multitude of functions, and are used for a variety of purposes. Political maps, railway maps, waterway maps, soil maps; from cross-sections of lake water depth to trolley routes; maps are irresistible and invaluable resources for learning about our environment in all its tremendous diversity.

This exhibit displays a sampling of The History Center’s map collection from the 19th through the 21st centuries.

Nov 15, 2017 - GIS Day

When: November 15, 2017, 12:00pm

Wednesday, November 15 is GIS Day, and we’re planning to host an event. GIS Day is an opportunity for GIS users around the world to demonstrate how we use GIS to make a difference - learn more at

Our event will be held at the Greater Ithaca Activities Center (GIAC) on Court Street in Ithaca, from 12:00 - 4:00 on November 15. We’d like to invite everyone who uses GIS in Tompkins County to share their work at this event.

You can share a poster, or a live demo - we’ll supply a table and wi-fi, you supply a laptop or whatever other device you need. Our audience will include your GIS-using colleagues, interested members of the public, and students in the GIAC afterschool program.