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Lauren Tierney

@tierneymaps.bsky.social
1.6K followers 539 following 134 posts

Senior Product Manager of Mapping & Cartography @ Esri. Previously @washingtonpost.com and National Geographic. Map-maker and geographer. linktr.ee/tierneymaps

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Reposted by Lauren Tierney
Jake Steinberg @jakesteinberg.com · 02/06/2026
I'm thrilled to announce that I will soon be an author! My book, The Twin Cities in 50 Maps, is a cartographic portrait of Minneapolis and St. Paul. The book includes 50 painstakingly designed maps and deeply researched essays that trace the Cities' urbanity, history, ecology, and culture.
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Reposted by Lauren Tierney
Andy Woodruff @awoodruff.bsky.social · 03/06/2026
Okay, about 4700 labels later I might declare this map done soon. Then again, it surely could cross 5000 if I just take a few years to track down names for every tiny pond etc. 🤔
Shaded relief map of the White Mountains and Lakes Region in New Hampshire.
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Lauren Tierney @tierneymaps.bsky.social · 16/04/2026
Really impressive mapping in this piece
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Lauren Tierney @tierneymaps.bsky.social · 16/04/2026
A few months ago I got to present in the @jhu.edu "GIS After Dark" speaker series, and the recording is now available. Thank you again to Cassie Hansen for inviting me to share the cartographic work happening at Esri! All talks available here: www.youtube.com/playlist?lis... #mapping #cartography
youtube.com
GIS After Dark - YouTube
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Reposted by Lauren Tierney
Daniel Huffman @pinakographos.bsky.social · 09/04/2026
Just found this super-useful tool: cmyk.printingbanana.com I work in CMYK a lot. And sometimes I sample an RGB color from an image as a starting point, and want to find a reasonable CMYK equivalent that *doesn't* use all 4 inks. This tool suggests reduced-ink alternatives.
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Reposted by Lauren Tierney
Robert Simmon @rsimmon.bsky.social · 08/04/2026
TIL. Adobe has scientific color palettes in their design system: spectrum.adobe.com/page/color-f... #dataviz #colorDivergent
Discrete and contiguous versions of brown to green, red to yellow to blue, and magenta to blue divergent color palettes.
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Lauren Tierney @tierneymaps.bsky.social · 09/04/2026
I put together a list of recent job openings I've seen posted in cartography, GIS, design, and journalism: www.linkedin.com/posts/lauren...
linkedin.com
#mapping #cartography #journalism | Lauren Tierney
Sharing a list of jobs in cartography, GIS, design, and journalism that have come across the feed the last few weeks: Manager, Mapping Designer (Cartographer) at LA28 Olympic & Paralympic Games https...
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Reposted by Lauren Tierney
Kenneth Field @kennethfield.bsky.social · 07/04/2026
Reminder for all but four humans that you can explore the #moon with the virtual interactive globe I made a few years ago. carto.maps.arcgis.com/apps/webappv... #NASA #ArtemisII #Orion
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Lauren Tierney @tierneymaps.bsky.social · 07/04/2026
I really love when color is incorporated into map labels ❤️ great piece by @johnmuyskens.bsky.social @naemas.bsky.social @bennollweather.bsky.social wapo.st/4moaloo
wapo.st
See where flowers and leaves are emerging early after record-warm March
About 190 million Americans are experiencing an early start to spring, based on the behavior of lilac and honeysuckle, data shows.
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Lauren Tierney @tierneymaps.bsky.social · 07/04/2026
Well this is delightful!
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Reposted by Lauren Tierney
Kenneth Field @kennethfield.bsky.social · 02/04/2026
Ian Muehlenhaus and I are exactly a quarter of the way through our AI mapping experiment. We're making maps using nothing but #promptcartography. One map a day for an entire year. Follow along with #365daysofmaps and learn more at mapdesign.icaci.org
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Lauren Tierney @tierneymaps.bsky.social · 01/04/2026
If you aren't following "One Minute at a Time" on Instagram, you are missing out! @wrneff.bsky.social creates informational videos on D.C. history that are truly remarkable. His latest video covers the history of the Japanese Lantern on the Tidal Basin: www.instagram.com/p/DWi8Vv3gZJG/
instagram.com
One Minute at a Time on Instagram: "This 17th-century granite tower, a gift from the Mayor of Tokyo to the United States in the 1950s, is one of the oldest sculptures in D.C., certainly among those st...
19 likes, 2 comments - oneminute.atatime on March 31, 2026: "This 17th-century granite tower, a gift from the Mayor of Tokyo to the United States in the 1950s, is one of the oldest sculptures in D.C.,...
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Lauren Tierney @tierneymaps.bsky.social · 31/03/2026
A few weeks ago, ahead of peak bloom of cherry blossoms in Washington, D.C., I wrote up a blog post on how I mapped trees across the city in ArcGIS Pro and Map Viewer: www.esri.com/arcgis-blog/... #cartography #mapping
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Lauren Tierney @tierneymaps.bsky.social · 23/03/2026
Yesterday was #WorldWaterDay, and I want to be sure to highlight this powerful Living Atlas resource, with cartography by @emilymeriam.bsky.social Learn more about water risk around the globe: www.esri.com/arcgis-blog/... #mapping #cartography
esri.com
Global Water Risk from Aqueduct in Living Atlas
Aqueduct is now available in ArcGIS Living Atlas of the World, providing water risk indicators at watershed, provincial, and national scales.
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Reposted by Lauren Tierney
Robert Simmon @rsimmon.bsky.social · 20/03/2026
Yesterday’s high temperature across the contiguous U.S. It should go without saying, but it’s astonishingly hot for March. Data from NOAA’s Unrestricted Mesoscale Analysis www.nco.ncep.noaa.gov/pmb/products...
Map of North American (mostly CONUS) maximum temperature on March 19, 2026, with a palette that goes blue - green - yellow - orange - red from low to high. The hottest temperatures are in the U.S. southwest and northern Mexico, coldest over Hudson Bay. Desert areas in Arizona and California were 110˚ F or even hotter.
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Reposted by Lauren Tierney
Kenneth Field @kennethfield.bsky.social · 17/03/2026
It's St. Patrick's Day so once more round the block for my #Irish surnames map. Download your free copy here: carto.maps.arcgis.com/home/item.ht... #stpatricksday #stpattysday #ireland #green #shamrock #luckoftheirish #stpaddysday #emeraldisle #celtic #Guinness
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Lauren Tierney @tierneymaps.bsky.social · 17/03/2026
Two things I love about spring: flowers and the sounds of geese making their way north. I found this cool map from the 1940s in the David Rumsey collection of flyways for ducks, geese, and swans. What are your favorite bird maps? Explore the map: www.davidrumsey.com/luna/servlet...
Image of a map from the 1940s of migratory flyways for ducks, geese, and swans in North America
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Reposted by Lauren Tierney
Robert Simmon @rsimmon.bsky.social · 16/03/2026
“This is what I like about mapping — you can exercise your creativity but there’s a lot of technical skill.“ @hannahdormido.bsky.social in her Open Visualization Academy course on mapping with QGIS: openvisualizationacademy.org/courses/cart...
openvisualizationacademy.org
1.1 Introduction - Cartography and Map Design with QGIS - Open Visualization Academy
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Lauren Tierney @tierneymaps.bsky.social · 16/03/2026
Cherry blossom season is fast approaching in Washington, D.C., with peak bloom projected for late March - early April. To prepare, I made some maps of blossoming trees in the city: www.esri.com/arcgis-blog/... #mapping #cartography
esri.com
Mapping cherry blossoms in ArcGIS Pro and Map Viewer
Make a spring-themed map of cherry blossom trees in Washington D.C. to create and visualize custom symbols.
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Reposted by Lauren Tierney
Anne Trubek @atrubek.bsky.social · 13/03/2026
Today’s to do list includes creating a plan to get the word out about @awoodruff.bsky.social’s forthcoming GORGEOUS books of maps. This post is part of this work!
beltpublishing.com
Boston in 50 Maps
By Andy Woodruff May 19, 2026 See Boston from a new perspective in these fifty-plus new, original maps. In this fun and informative book, you can trace Paul Revere’s ride as well as Viking Leif Erikso...
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Lauren Tierney @tierneymaps.bsky.social · 13/03/2026
Delightful Friday map content by @peterincan.bsky.social @johnnelsonmaps.bsky.social Expert Reviews MOVIE MAPS www.youtube.com/watch?v=7OJl...
youtube.com
Expert Reviews MOVIE MAPS
YouTube video by John Nelson Maps
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Reposted by Lauren Tierney
Robert Simmon @rsimmon.bsky.social · 10/03/2026
Spectacular way to view a lunar eclipse. By Michala Garrison. science.nasa.gov/earth/earth-...
science.nasa.gov
Shades of a Lunar Eclipse - NASA Science
A series of nighttime satellite images revealed how moonlight reaching Earth varied throughout a total lunar eclipse.
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Lauren Tierney @tierneymaps.bsky.social · 10/03/2026
Did you know you can submit maps for consideration to be featured on Maps.com? The team looks for maps that inspire, challenge, educate, reward, dazzle, and provoke across a range of topics and formats. Submit your map(s): www.maps.com/submit-map/
maps.com
Maps.com | Maps about Trending Topics
Maps.com is your guide to exploring our world through maps. Discover trending maps about topics like climate change, social issues, infrastructure, equity, public policy & more.
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Lauren Tierney @tierneymaps.bsky.social · 09/03/2026
Lots of new stuff in the latest Esri Map Viewer update, including: -Improved label positioning for polygon labels -Symbol offset effect, to help distinguish between overlapping features -Animated symbols For all the updates be sure to check out this blog post: www.esri.com/arcgis-blog/...
esri.com
What's New in Map Viewer (February 2026)
Explore the new features and enhancements to Map Viewer in the February 2026 update.
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Reposted by Lauren Tierney
Daniel Huffman @pinakographos.bsky.social · 06/03/2026
It occurs to me I never shared the video of my #nacis2025 talk. It's eight minutes of me musing about how to deal with the challenge of accepting praise from colleagues. www.youtube.com/watch?v=1zvt... I mean, I'm guessing it is. I haven't watched it, and October was a long time ago.
youtube.com
Thank You for the Kind Words - Daniel P. Huffman, somethingaboutmaps
YouTube video by NACIS
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Reposted by Lauren Tierney
Robert Simmon @rsimmon.bsky.social · 06/03/2026
These maps of the Iran war are uniformly fantastic, especially the animated ones showing changing flight and shipping patterns. #ddj #cartography
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Lauren Tierney @tierneymaps.bsky.social · 04/03/2026
I put together a list of recent job postings in the mapping and journalism space, please add more as you find them! www.linkedin.com/posts/lauren...
linkedin.com
Listing job postings I've seen recently in mapping, cartography, and journalism. If you have others to share, please comment and add them to the list ❤️ GIS Industry Solutions Manager - National...
Listing job postings I've seen recently in mapping, cartography, and journalism. If you have others to share, please comment and add them to the list ❤️ GIS Industry Solutions Manager - National Map...
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Lauren Tierney @tierneymaps.bsky.social · 25/02/2026
Ready for spring and for cherry blossoms to make an appearance! In the meantime I'll be enjoying these beautiful photographs by @hannahdormido.bsky.social www.instagram.com/p/DKn0mT3Oly... ...and reading about illustrated cherry blossom maps by @moriartymaps.com moriartynaps.org/cherry/
moriartynaps.org
Bloomin
A guide to capturing springtime bliss and centuries old design in map form
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Lauren Tierney @tierneymaps.bsky.social · 18/02/2026
Snow is❗still❗melting here in D.C., so why not check out some maps of that snow storm and learn about re-designing color schemes for color vision deficiencies. www.esri.com/arcgis-blog/... #mapping #cartography
esri.com
Revisiting Color Schemes: Always Room for Improvement
How to test your mapping color schemes in ArcGIS Pro with the Color Vision Deficiency Simulator accessibility tool
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Lauren Tierney @tierneymaps.bsky.social · 12/02/2026
Love this from @graphics.reuters.com "Bad Bunny Rewriting the "Rules" of American Popstardom" via @datawrapper.de Data Vis Dispatch www.reuters.com/graphics/FOO...
reuters.com
Bad Bunny rewriting the ‘rules’ of American popstardom
How Bad Bunny rose to incredible success in the U.S. while singing in Spanish.
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Lauren Tierney @tierneymaps.bsky.social · 12/02/2026
Thank you to everyone who joined our sessions at #FedGIS2026 this week. I really enjoyed making these little maps to demo some of the new software features and enhancements in ArcGIS Pro.
Map of volcanic areas in OregonMap of cherry blossom trees around the Tidal Basin in Washington, D.C.
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Reposted by Lauren Tierney
Kenneth Field @kennethfield.bsky.social · 12/02/2026
Thanks to everyone who came to our mapping sessions at #FedGIS this week, and for all your lovely comments. I know I speak for Nathan and @johnnelsonmaps.bsky.social when I say we're always deeply touched by the feedback we receive. Keep mapping!
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Robert Simmon @rsimmon.bsky.social · 09/02/2026
Looks like my full series on using color in #dataviz finally made the migration to the new NASA science website: science.nasa.gov/blogs/earth-... If you’re new to visualization, or just want a refresher, it covers the basics of color theory, how to build a palette, plus some tips & tricks.
science.nasa.gov
Introduction (Subtleties of Color, Part 1 of 6) - NASA Science
The purpose of data visualization—any data visualization—is to illuminate data. To show patterns and relationships that are otherwise hidden in an impenetrable mass of numbers.
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Lauren Tierney @tierneymaps.bsky.social · 09/02/2026
This week is Esri #FedGIS, & I'll be presenting w/ the amazing Valeria Chavez. Catch us in: ArcGIS Pro: Mapping & Visualization registration.esri.com/flow/esri/26... ArcGIS Pro: What's New registration.esri.com/flow/esri/26... Full list of mapping sessions: registration.esri.com/flow/esri/26...
registration.esri.com
2026 Esri FedGIS | Esri
Join us for the 2026 Esri FedGIS.
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Lauren Tierney @tierneymaps.bsky.social · 09/02/2026
Don't miss these three if you're at #FedGIS, they're in DC this week to share some cartographic magic! registration.esri.com/flow/esri/26...
registration.esri.com
2026 Esri FedGIS | Esri
Join us for the 2026 Esri FedGIS.
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Reposted by Lauren Tierney
Daniel Huffman @pinakographos.bsky.social · 05/02/2026
A few years ago I made this poster and released it as a free PDF (somethingaboutmaps.wordpress.com/2022/12/19/p...). This week, I learned from a colleague that it has actually been posted in an educational setting!
A yellow-and-blue poster titled on the bottom as "Projection Connections." It shows a complex flowchart of dozens of map projections. Each projection is shown as a pale yellow tile which contains the projection name and the appearance of its graticule, linked by patterned pipes on a dark teal geometric background. The pattern on each connecting line gives information on the relationships between projections.A more detailed view of a few projections on part of the poster, and its legend. Different connecting lines can indicate whether one projection is a specific case of a parent projection, or an averaging of two projections, or a fusion of two projections, or otherwise a mathematically modified version.More details from the poster, showing several uncommon projections, as well as some familiar ones. For example, the Goode Homolosine is shown, an connected to the Sinusoidal and Mollweide projections, since it is a fusion of the two.
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Reposted by Lauren Tierney
Alyssa Fowers @alyssafowers.bsky.social · 04/02/2026
I was laid off from the Washington Post today, along with hundreds (!!!) of incredible colleagues. If you need a data journalist, chart designer, or wacky-idea-specialist, give me a shout!
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Lauren Tierney @tierneymaps.bsky.social · 04/02/2026
The @postguild.bsky.social has organized a layoff fund for employees impacted by layoffs at The Washington Post: www.gofundme.com/f/standing-t...
gofundme.com
Donate to Washington Post 2026 layoff fund, organized by Rachel Siegel
On Wednesday, Feb. 4, 2026, The Washington Post laid off hundreds of journalists. We ar… Rachel Siegel needs your support for Washington Post 2026 layoff fund
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Lazaro Gamio @lazarogamio.bsky.social · 04/02/2026
gofundme.com
Donate to Washington Post 2026 layoff fund, organized by Rachel Siegel
On Wednesday, Feb. 4, 2026, The Washington Post laid off hundreds of journalists. We ar… Rachel Siegel needs your support for Washington Post 2026 layoff fund
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Lauren Tierney @tierneymaps.bsky.social · 03/02/2026
The last few weeks I've seen a lot of great job opportunities shared, listing a few that stood out to me in the mapping/cartography/visual journalism space: www.linkedin.com/posts/lauren...
linkedin.com
#mapping #cartography #datajournalism #visualjournalism | Lauren Tierney
The last few weeks I've seen a lot of great job opportunities shared, listing a few that stood out to me in the mapping/cartography/visual journalism space: Data Visualization Journalist at The Seatt...
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Lauren Tierney @tierneymaps.bsky.social · 02/02/2026
ICYMI: Excellent blog by Andy Skinner and @emilymeriam.bsky.social on building a bivariate color scheme for maps www.esri.com/arcgis-blog/... #cartography #mapping
esri.com
Building a Bivariate Color Scheme
Bivariate maps can be very effective, but the colors you choose can make or break them. Here is some guidance on how to manage that.
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Lauren Tierney @tierneymaps.bsky.social · 29/01/2026
Going to #FedGIS2026, or thinking about attending? Below are some helpful links to learn about and register for the event: Overview: www.esri.com/en-us/about/... Detailed agenda: registration.esri.com/flow/esri/26... Registration: www.esri.com/en-us/about/... Hope to see you there, Feb. 9-11 🗺️
esri.com
2026 Esri FedGIS: Feb 10-11 in Washington, DC
Join peers, experts & GIS thought leaders at the Esri FedGIS event in Washington, DC. Explore new technology and attend professional development and training sessions.
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Lauren Tierney @tierneymaps.bsky.social · 27/01/2026
A lot of snow (and ice) fell across the U.S. over the weekend. I decided to map snow depth totals in the Mid-Atlantic, and experiment with some new color ramps. Here's a blog I wrote last year on mapping snow with SNODAS data: www.esri.com/arcgis-blog/...
Map of snow depth in the Mid-Atlantic on January 26, 2026Map of snow depth in the Mid-Atlantic on January 26, 2026
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Lauren Tierney @tierneymaps.bsky.social · 22/01/2026
I love weather and I love maps. So when there is an incoming snow storm it is interesting for me to see how different news agencies are mapping the event. Here are examples from @nytimes.com @washingtonpost.com @cnn.com. Any others you've seen that work well (or don't)? Links threaded below:
Map by New York Times of January 2026 expected snow storm totals.Map by The Washington Post of January 2026 expected amounts of snow, rain, sleet, freezing rain, and a mix. Map by CNN of January 2026 expected snow storm totals.
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Lauren Tierney @tierneymaps.bsky.social · 20/01/2026
The @nacis.bsky.social mentor program is now accepting sign-ups for mentors and mentees. I have been a mentor for this program twice, and have learned so much from the amazing cartographers I was paired with. Deadline to apply Feb. 17th nacis.org/initiatives/...
nacis.org
NACIS.ORG
The North American Cartographic Information Society (NACIS) is an enjoyable society of map enthusiasts. We have yearly meetings, an online discussion forum, and we work on a variety of projects and pu...
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Lauren Tierney @tierneymaps.bsky.social · 14/01/2026
I've spent the last few weeks slowly going through #NACIS2025 recordings, looking for inspiration and joy in map-making to get me through a difficult time. This is in no way a comprehensive list, but these cartographers and their presentations really stood out to me in their creative process (1/5)
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Lauren Tierney @tierneymaps.bsky.social · 07/10/2025
Hello DMV folks! My colleague is working on a community-driven map of D.C. neighborhoods, if you have some time and know the area, let's draw some neighborhood boundaries! experience.arcgis.com/experience/4...
experience.arcgis.com
Experience
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Reposted by Lauren Tierney
The Upshot @upshot.nytimes.com · 08/09/2025
Zodiac signs were originally based on the stars. But over thousands of years, our view of the stars has shifted. That means, if you account for this shift, your sign might not be what you think. www.nytimes.com/interactive/...
nytimes.com
Your Zodiac Sign Is 2,000 Years Out of Date
Over millennia, our view of the stars has shifted, because of Earth’s wobble. It may be time to rethink your sign.
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Lauren Tierney @tierneymaps.bsky.social · 13/08/2025
New blog post about maps I made for a presentation with @kennethfield.bsky.social and @johnnelsonmaps.bsky.social at #esriuc2025! We each made three maps with the same dataset to highlight different thematic mapping approaches. Loved presenting with Ken and John! www.esri.com/arcgis-blog/...
esri.com
Mapping Happiness in Three Acts
Mapping happiness three different ways with different symbology and visualization approaches, presented at the Esri User Conference
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Lauren Tierney @tierneymaps.bsky.social · 08/08/2025
Really nice map by @timmeko.bsky.social @postgraphics.bsky.social in this piece about young kayakers traversing the Klamath River now that dams are removed. Read the full story: www.washingtonpost.com/nation/inter...
Map of Klamath River in Oregon and California, by The Washington Post
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