How do I change a city name?

Sometimes some maps are more satisfying than others. What I did on “Cho-do” (“초도”) — Cho island — is definitely one of them!

Cho-do in North Korea is one of the largest islands in the country, and today we can proudly say that it is fully mapped on OpenStreetMap!

In this diary, I explain the small steps I had to take to achieve what I consider to be — among the various places I have mapped — the most complete area !

See it directly on OpenStreetMap!

Why an island?

I have been able to map various locations in North Korea (and a few other places), but there are few areas that are as well-defined as islands — which are not too large either — to map completely.

The idea of doing an island came to me from a contributor, @Lyokoï, who plans to map at least one island in every country/territory in the world. I love the idea, but if I were to take on this kind of project, it would be to map all the islands of North Korea 🤭!

… See full entry

辽源市 220400

龙山 220402

西安 220403

东丰 220421

东辽 220422

白山市 220600

浑江 220602

江源 220605

抚松 220621

• X121 新榆线
• X123 三板路

靖宇 220622

长白 220623

• X125

临江 220681

松原市 220700

宁江 220702

前郭尔罗斯 220721

长岭 220722

• X139长岭-大岗子
• X140长岭-通榆

乾安 220723

扶余 220781

• X144陶华线
• X149

通化市 220500

东昌 220502

二道江 220503

通化县 220521

辉南 220523

柳河 220524

梅河口 220581

• S738 黑大长白连接线

• S739 黑大抚公连接线

• X740黑大线梅河口东连接线
• X741黑大线梅河口西连接线

集安市 220582

*X638

白城市 220800

洮北 220802

• X151半拉山-团结湖
• X165白城-军马场

镇赉 222821

• X153东坪-莫莫格
• X154坦途-白沙滩
• X155坦途-丹岱

通榆 222822 (X156-X160)

• X156瞻榆-联合
• X157向海-团结
• X158向海-解放
• X159四井子-太平川
• X160十花道-达日嘎

洮南 222881

• X161洮南-镇西
• X162洮南-舍力
• X163洮南-野马
• X164胡力吐-太山镇

大安 222882

• X166安广-舍力

长春市 220100（不含公主岭市）

南关 220102

• X001长春-伊通✓

宽城 220103

• X004合隆-乌兰图嘎

朝阳 220104

二道 220105

• X003长春-石头口门

绿园 220106

双阳 220112

• X005双阳-德惠
• X006双阳-朝阳山
• X007新安-烧锅✓

九台 220113

• X017九台-大坡✓
• X018九台-怀德✓

农安 220122

• S610 珲阿线农安北连接线
• S611 珲阿线农安南连接线

榆树 220182

• S604 黑大舒陶连接线

• S608 榆树西环路

• X019榆树-五棵树
• X020榆树-山河屯✓
• X021福安-天德✓
• X022大岭-秀水✓

• X023向阳-水曲柳✓

• X601五通线榆树市匝道

• X604黑大舒陶连接线✓

• Y524腰新-双丫-大岭✓
• Y527榆延线-吉星✓

德惠 220183

• X013德惠-前张家？

• X028菜园子-口前

• X607德惠西连接线

吉林市 220200

昌邑

龙潭

• X0??九座-红风
• X034大口钦-天岗

船营

• X031
• X035吉林-孤店子
• 河双线

丰满

• X029吉林-天南✓
• X030吉林-桦甸
• X033丰满-杨木

永吉

蛟河

• X036前进-金马
• X037
• X038
• X039
• X040蛟河-奶子山✓
• X041蛟河-解放✓
• X042白石山-敦化✓
• X043琵河-漂河✓

桦甸

舒兰

• X048舒兰-开原

• Y001水曲柳-七里
• Y002法莲路
• Y004七里-金马
• Y014庆丰-朝阳
• Y019亮山-东大
• Y033七里村-青松林场
• Y049黄鱼-法特农场
• Y066爱国-德胜
• Y067朝阳-胜和
• Y080白旗沟北-渡口
• Y096宏星-丰广
• Y116黄鱼-五里
• Y119莲花粮库-郝家崴子

磐石

• X0??磐石-官马

四平市 220300

铁西 220302

铁东 220303

• X056叶赫-马鞍山

• X626京哈高速四平东连接线
• X659原G102北出口

梨树 220322 (X???-X063)

• X053郭家店-孟家岭✓
• X057梨树-二龙湖✓
• X058梨树-小城子✓
• X059喇嘛店-石岭✓
• X060白山-刘家馆子(原X057)✓
• X061郭家店-长岭✓
• X062郭家店-双山✓

• X063刘家馆子-六屋✓

• Y018刘家馆子-乌兰✓
• Y019龙山-东卡篓✓
• Y029胜利-夏甸子✓
• Y037新发-东河✓

• Y052榆树台-林海✓

• C013西中安堡-西南甸子✓
• C027五业-小东关✓
• C062王家屯-敬友村✓
• C250小城子-中央堡✓
• C258太平-前梁家✓
• C273东河-赵家店✓

伊通 220323 (X064-X066)

• X064伊通-怀德✓
• X065伊一线
• X066大孤山-平岗

公主岭 220184（现属长春市）(X067-X073)

• X067公双线✓
• X068公主岭-二龙湖✓
• X069怀德-茂林✓
• X070大榆树-响水✓
• X071十屋-卧虎✓
• X072公主岭-南崴子✓

• X073四棵树-刘家馆子✓

• X736公主岭-南崴子（公主岭西联络线）？

• X737四合屯-刘房子（公主岭东联络线）

• Y055玻璃城子-东山
• Y057杨城子-太平沟
• Y059糠醛厂-王家窑
• Y060宝泉-莲花山
• Y061杨城子-平安

• Y062杨城子-耙子铺

• C008长发小学-新烧路
• C010新烧路-红石
• C023崔家屯-杨太路
• C025伊怀路-尖山子五屯
• C026伊怀路-尖山子三屯
• C080民助-民兴
• C088平安岭-民强
• C095长双线-兴隆沟
• C107柳罐印子-十里镇
• C113公双路-十里镇六屯
• C118公双路-十里镇四屯
• C119九间房-赵家窝铺
• C120铁岭窝堡十屯-公双路
• C127三里堡六屯-五屯
• C131公双线-五道岗八屯
• C133公双路-农林
• C143黄花三屯-陈家窝堡
• C147公双路-六家子
• C162玻璃城子村-广宁
• C163玻璃城子-海丰刘
• C176林源七屯-林源村
• C296王家窑五屯-二屯
• C315老房身-王杂铺

双辽 220382

• X074双辽-金宝屯✓
• X075新立-东明✓
• X076茂林-新安✓

• X077桂花-永久✓

• Y001 集锡线-敖伦✓
• Y002 粮种场-白市✓
• Y003 吉兴-望杏✓
• Y004 忠信-新发✓
• Y005 光明路✓
• Y006 王奔-高产✓
• Y007 宏伟-三江坝下✓
• Y008 丁家-明沈线✓
• Y009 王奔-德胜（东明）✓
• Y010 吴家-庆祥✓
• Y011 长双线-乌兰✓
• Y012 红石–汤头✓
• Y013 义顺-白菜✓
• Y014 白牛–丰宝✓
• Y015 义顺–官井✓
• Y016 新立–荷花✓
• Y017 刘家–马家✓
• Y018 双龙–丰产✓
• Y019 山丁–长泡✓
• Y020 公平-双山✓
• Y021 双山-服先✓
• Y022 前齐-集福屯✓
• Y023 川头水库-集福屯✓
• Y024 长双线-金良✓
• Y025 土山-东兴✓
• Y026 五星-同乐✓
• Y027 五星-白菜✓
• Y028 五星-孤店✓
• Y029 玻璃山-种羊场✓
• Y030 玻璃山-永安✓
• Y031 向阳-堡石图✓
• Y032 怀茂线-乔家✓
• Y033 怀茂线-三林✓
• Y034 齐双线-美丽✓
• Y035 堡石图-乐利✓
• Y036 堡石图-二龙山✓
• Y037 日新-二龙堡✓

                  🔸✴️🔸К О О Р Д И Н А Т И🔸✴️🔸


       Г Е О . 🧭  Д Ъ Л Ж И Н А   - > 

       Г Е О .  🧭  Ш И Р И Н А  - >

I worked a little more on Crowder. It may be a small town compared to my home town but it takes a lot more concentration. I don’t know the area and there isn’t as much on line information meaning I have to be slow and deliberate with how I map. I want to do right by Crowder.

I worked on two city blocks.

The #30DayMapChallenge is a social media event where map enthusiasts create daily maps based on a set theme throughout November. You can find more details on the website 30daymapchallenge.com.

After observing the challenge for many years, I participated for the first time in 2025.

I wanted to use the challenge to better understand fundamental mapping concepts. It wasn’t primarily about creating especially beautiful or eye-catching maps. Rather, I am working on a small project where I create vector tiles for small areas—mostly using free software and open formats like Shortbread and Versatiles. At the same time, I am increasingly experimenting with self-created vector tiles and custom styles. So far, I have used Tilekiln or Tilemaker for the tiles, and for styling, I used Glug for the first time. Since I also enjoy Leaflet, I include a Leaflet map wherever it fits better.

In this article, I want to experiment with my designs and work on questions that are still open in my to-do list, or simply try out something new.

… See full entry

• Map yerragattu area first
• followed by bheemaram
• move towards KU X Road
• move towards public garden

It’s relatively common for various national and regional GNSS correction networks to be referenced in a CRS other than WGS84 used in OpenStreetMap. The reason for this practice is that countries and regions use their own coordinate systems, most suitable for the territory they cover.

For example, the Oregon Real-Time GNSS Network (USA) uses NAD83 (2011) epoch 2010.00, according to their website.

It means that any RTK measurement taken while receiving NTRIP correction data from such a network will be referenced to the same CRS. That applies directly to the NMEA data output of the receiver, despite it normally being implied to be in WGS84. The majority of receivers available to amateurs are incapable of being configured to be aware of that. (The only sub-$1k receiver core I’m aware of that can “understand” the NTRIP CRS defined manually is Septentrio Mosaic.)

So, unless you perform a transformation from said CRS to WGS84, your tracks are going to be completely unsuitable for submission into the OSM public tracks database.

However, there’s a pretty straightforward way to perform the required transformation. Unfortunately, it’s “a little” longer than ideal for the exact same reason that NMEA data is implied to be in WGS84, so feeding a NMEA log directly may result in the reader ignoring the input CRS override.

The key tool for this is, coincidentally, JOSM. Here’s the workflow that functions just fine in my experience:

… See full entry

I look after a map style that’s designed to show rural pedestrian-focused information (hiking routes etc.). It natively supports zoom levels up to raster 24 and vector 26 (which is equivalent to raster 27), which means that small things like fire hydrants and manholes can be shown at high zooms without getting in the way of everything else. The raster and vector versions differ slightly, partly for technological restrictions (finding out “which routes this guidepost is part of” is easier on vector than raster).

A big question, though, is how do I find out what is missing? The styles evolved from an overlay for the the OSM Carto raster style in 2014 and have been added to ever since. However, the things that people map in OSM has increased a lot in that time. Sometimes I spot something obvious that’s missing, but how do I make sure that I haven’t ignored some relatively high-usage and important tag?

… See full entry

As usual, I don’t remember what site got me interested in the topic, but here we are anyways.

What are mounting blocks?

They are raised platforms or sometimes even flights of several steps used to mount and dismount horses, carriages, and I believe maybe also to load luggage onto the roof of a carriage. This helps short people or people with other physical restrictions (back in the day women trying to ride their horses side saddle in dresses) to enjoy horse riding. In the UK, for example, they are protected structures. In Ireland, they are not, and I have not searched further than that.

• Wikimedia category for mounting blocks in England
• Wikimedia category for mounting blocks in Scotland
• Wikimedia category for mounting blocks in Wales
• Wikimedia category for mounting blocks in Ireland
• Wikimedia category for mounting blocks

Where can I find mounting blocks?

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