All treats in our October newsletter: 🎃 Mappy Hour 🎃 Mapping USA 🎃 Mapper Highlight 🎃 State of the Map US 2027 🔗 openstreetmap.app.neoncrm.com/nx/portal/vi... #OpenStreetMap #opendata #OSM #geo #geospatial #MappyHour #MappingUSA #StateoftheMapUS #SOTMUS2027

In our latest Mapper Highlight, we interviewed William Edmisten (editing OSM as wcedmisten), a Virginia mapper who recently mapped every hospital network in the U.S. 🔗 openstreetmap.us/news/2026/10... 💻️ wcedmisten.fyi 🗺️ www.openstreetmap.org/user/wcedmis...

Mapper Highlight: Mapping US Hospital Networks

OSM US is excited to bring you another installment of our Mapper Highlight series, where we shout out mappers, projects, and OSM communities that catch our eye. This October, we interviewed William…

openstreetmap.us

There's still time to take part in the 31 Day OSM Challenge (aka Maptober). Check it out: wiki.openstreetmap.org/wiki/31_Day_... #31DayOSMChallenge #Maptober #Maptober2026 #OpenStreetMap

31 Day OSM Challenge - OpenStreetMap Wiki

Inspired by the annual 30DayMapChallenge, the Local Chapters and Communities Working Group of the OpenStreetMap Foundation is organising the 31 Day OSM Challenge, aka Maptober, this October 2026!

wiki.openstreetmap.org

Lots of folks are registering for October's #MappyHour. Brought to you by the OSM US Trails Stewardship Initiative, the hour will focus on #mappingtrails with #accessibility in mind. Join us on October 21st at 8 pm ET. Save your spot: openstreetmap.app.neoncrm.com/event-detail... #OpenStreetMap

Show your support for #opendata and #OpenStreetMap! Become an OpenStreetMap US member for as little as $20 a year. It’s easy to join: openstreetmap.app.neoncrm.com/forms/indivi... #MappyMonday #MemberMonday #maps #geospatial #OSM

History buffs: help our friends at #OHM ⬇️

OpenHistoricalMap@openhistoricalmap.org · 3w ago

Our needs are tiny by tech project standards, but our volunteers still count on us to innovate and keep the lights on. Please consider donating today through our 501(c)(3) fiscal host, @osmus.bsky.social. (Yes, we accept #DAFPay.) openstreetmap.app.neoncrm.com/forms/ohm #DAFDay2026 #DAFDay

Thank you to the Ann Arbor District Library, a renewing OSM US member! Check out more about the very popular Summer Game here: www.npr.org/2025/08/04/n... #OpenStreetMap #opendata #mapping

📆 Mark your calendars for #MappingUSA, coming your way January 29 & 30, 2027 Mapping USA is OSM US’s free online conference. Hop in the virtual mapmobile for a road trip across the US mapping community! ❄️ openstreetmap.us/events/mappi... #OpenStreetMap #OSM #cartography #geospatial #opendata

Mapping USA 2027

Mapping USA is OSM US’s free online conference. Hop in the virtual mapmobile for a road trip across the US mapping community!

openstreetmap.us

Thanks to everyone who joined us for September's #MappyHour. ICYMI, or if you want to review the recording, it's up on our YouTube channel, so check it out ⬇️ youtu.be/rALnkQF3sM0?... #OpenStreetMap #pointsofinterest #POIs #Layercake

OSM US Mappy Hour: POIs with Foursquare

This is a recording of the September 23, 2026 OSM US Mappy Hour: POIs with Foursquare. First, OSM US Lead Software Developer presents on the basics of POIs in OpenStreetMap, then on Layercake, a new…

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Membership is critical to OpenStreetMap US's success and sustainability. Join 300+ members supporting OSM US! Become a member today: openstreetmap.app.neoncrm.com/forms/indivi... 😊 Thank you! #MemberMonday #OpenStreetMap #OSM #nonprofit #opendata

October's #MappyHour will focus on mapping trails with accessibility in mind, brought to you by the OSM US Trails Stewardship Initiative! Join us on October 21st at 8 pm ET. Save your spot: openstreetmap.app.neoncrm.com/event-detail... #OpenStreetMap #TrailData #TrailSafety #OpenData

Got a sweet tooth for easy-to-access data? Layercake is a distribution of OpenStreetMap data, separated into thematic layers and converted to GeoParquet, making it easier to use with many GIS tools. Learn more: openstreetmap.us/news/2026/09...

Layercake

OpenStreetMap data extracted into thematic layers and converted to cloud-native file formats that are easy to use with software from DuckDB to QGIS.

layercake.openstreetmap.us

Good news in our September newsletter: 🍏 Mappy Hour 🍏 Layercake 🍏 Mapping USA 🧐 openstreetmap.app.neoncrm.com/nx/portal/vi... #OpenStreetMap #MappyHour #Layercake #MappingUSA #geo #opendata

In this #SOTMUS2026 presentation, Aditya Sridhar from Lyft Mapping explores AI agents for high-volume ground-truth validation. 🔗 youtu.be/yREdUABY4xE?...

Scaling OSM Curation: AI Agents for High-Volume Ground-Truth Validation ~ Aditya Sridhar

Manual curation is a bottleneck, with backlogs hitting 200k tasks. By using a distributed data network, data expiration has been cut from 11 to 3 months, making the map 4x fresher. This volume…

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This #SOTMUS2026 talk shares stories from experience making maps with drawing machines using favorite OSM tags. 🔗 youtu.be/OdoK1H3AJVo?...

Plotting OpenStreetMap ~ Ariel Kadouri

There are many fun flavors of OpenStreetMap, from the classic style on openstreetmap.org, to Americana, OpenTrailMap, OpenCycleMap and more. Plenty of people create physical maps too, using QGIS or…

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In this #SOTMUS2026 presentation, Matt Whilden explores how to encourage mappers. 🦩 🔗 youtu.be/YAaDqSRTsdI?... 🦩

Motivating Mappers ~ Matt Whilden

If you can spend an hour doing an activity that causes another mapper to do 2 more hours of mapping, that's an incredible increase in mapping. But what could possibly do that? Are these techniques…

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This #SOTMUS2026 presentation offers a first look at the new #MapRoulette interface. The redesign aims to give users a fresh interface with targeted improvements, without breaking the "flow" that has worked for mappers for 13 years. 🦩 🔗 youtu.be/1SIU0xUJhSg?... 🦩

Announcing MapRoulette 4 ~ Martijn Van Exel

An excited first look at the brand new MapRoulette interface! With this redesign, the goal was to give users a fresh user interface with targeted improvements, while not breaking the "flow" that has…

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One day in 2021, Jacob used #StreetComplete on a date, and now Alyssa works for #OpenStreetMap US. In this #SOTMUS 2026 talk, learn how this couple balances their map-focused personal and work lives, and how you can get your family and friends involved in #OSM too! 🔗 youtu.be/WJZnai3dsxo?...

How OpenStreetMap Infiltrated our Relationship ~ Alyssa Castronuovo & Jacob Hall

Full title: How OpenStreetMap Infiltrated our Relationship (or how you can get your loved ones into OSM) One day in 2021 Jacob opened up StreetComplete on a date, and now Alyssa works for…

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This #SOTMUS2026 talk covers a statistical model using change sets to estimate OSM's data fidelity for POIs, including shops, amenities, leisure, and healthcare. 🔗 youtu.be/gr6oGzpOgik?...

What is real? Estimating the fidelity of OSM data using changesets ~ Nat Henry

OSM users want to know that the map reflects reality at their location and for their points of interest (POIs). This talk covers a statistical model that uses changesets to estimate OSM's data…

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#OpenHistoricalMap is more than a map. In this #SOTMUS2026 talk, learn about OHM's analysis tools, what you can do with them, and the shortcomings the project wants to address with community help. 🔗 youtu.be/-2lJT6FiwsU?...

History however you look at it ~ Minh Nguyễn

OpenHistoricalMap is more than a map. As an open data project, it aims to help people discover and understand the wealth of information that mappers have contributed, whether or not it fits on the…

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Our September #MappyHour is about all things points of interest (POIs)! Join Jake Low (OSM US Software Engineer) & the Foursquare team to discuss recent efforts around utilizing & conflating #POI #data from #OpenStreetMap. Registration is free: openstreetmap.app.neoncrm.com/forms/mappy-...

⚜ On Sunday at #SOTM2026, Alyssa Castronuovo and Maggie Cawley will present "50 States (and at Least as Many Mappers): Community Building in the US Over the Last Decade." 🔗 2026.stateofthemap.org/sessions/RYF... ⚜️ 2026.stateofthemap.org #OpenStreetMap #StateoftheMap #Paris #communitybuilding

⚜ On Friday, August 28th, at #SOTM2026, OSM US Executive Director Maggie Cawley will be part of the Local Chapters & Communities Congress session: 2026.stateofthemap.org/sessions/E7G... ⚜️ 2026.stateofthemap.org #OpenStreetMap #StateoftheMap

Friday at #SOTM2026, OSM US Tech Lead Jake Low will showcase two projects, Layercake and Soughdough, in this talk: 2026.stateofthemap.org/sessions/EMM... ⚜️ 2026.stateofthemap.org

It's official! OldInsuranceMaps is now part of the OSM US Charter Program. Learn more about OIM in this blog post: openstreetmap.us/news/2026/08... #OpenStreetMap #OldInsuranceMaps #opendata #geospatial #maps

OldInsuranceMaps.net is now a Charter Project!

OSM US is incredibly excited to announce the latest Charter Project: OldInsuranceMaps.net (OIM)!If you’re a map nerd you’ll remember ever seeing a Sanborn Insurance Map in person. They often come in…

openstreetmap.us

Sharing good stuff in the OSM US August newsletter: ⛱ The team is traveling to SotM in Paris ⛱ September Mappy Hour ⛱ New Charter Project: OldInsuranceMaps.net Read all about it: openstreetmap.app.neoncrm.com/np/viewEmail... #OpenStreetMap #MappyHour #SOTM2026 #OSM #opendata #geospatial

This #SOTMUS2026 presentation shows how #OpenSidewalks (OSW) data has been published as reference layers and surfaced directly inside the Rapid editor, so mappers can use it today as part of their workflow while mapping pedestrian infrastructure in #OSM. 🔗 youtu.be/aqfywDMOekw?...

OpenSidewalks in OpenStreetMap: Using OS-CONNECT as a Reference Layer in Rapid ~ Amy Bordenave

OpenSidewalks (OSW) is an open data standard for mapping connected pedestrian networks, developed by the Taskar Center for Accessible Technology (TCAT) at the UW. In Washington State, a legislative…

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On June 29, 2025, the Metrobus network in the Washington, DC area was radically altered overnight. This #SOTMUS2026 session explores how a few mappers quickly incorporated new data into #OpenStreetMap & inspired others to update bus networks in the surrounding area. 🔗 youtu.be/xlWNapXvBks?...

(Re)Mapping DC's Bus Network ~ Andrew Heare

On June 29, 2025, the Metrobus network in the Washington, DC area was radically altered overnight. Every route number was changed, bus stops were closed, and some routes were entirely different than…

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GrabMaps' KartaDashCam transforms ride-hailing trips in Southeast Asia into a passive mapping fleet. This #SOTMUS2026 talk shares the architecture, results from thousands of deployed units, & the technical & operational challenges of scaling edge-first map-making. 🔗 youtu.be/RynmZd0zgyw?...

Reinventing Map-Making with Edge AI Dashcams: KartaDashCam at Scale ~ Adrian Margin

GrabMaps' KartaDashCam transforms everyday ride-hailing trips in Southeast Asia into a passive mapping fleet. Using Edge AI, it detects traffic signs and POIs on-device to drastically reduce mapping…

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This #SOTMUS2026 talk describes the OSM US & Mapillary Camera Grant Program's impact from the perspective of one local mapper. It also discusses scaling street-level imagery collection in the US on Panoramax, a federated, free, and open-source platform. 🔗 youtu.be/AQh5C2xv09M?...

Impact of Mapillary Camera Grant and Scaling Open Street-Level Imagery Across US ~ Harald Kliems

In 2025, the Mapillary Camera Grant Program distributed 40 cameras to the OpenStreetMap US community. Over 5 million fresh 360 degree images and comprehensive coverage of cities from Lansing,…

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