Helen McKenzie @helenmakesmaps Twitter profile | Pikagi

Pikagi

Helen McKenzie

@helenmakesmaps

12,717

Followers

1,272

Following

945

Media

3,604

Statuses

Data & geospatial advocate, content creator & all around map geek @CARTO 🌍🌐🗺 Likes: cheese on beans on toast, sitting, otters. Views mine. she/her.

London

https://t.co/L2C18tEf8v

Joined January 2013

Don't wanna be here? Send us removal request.

Pinned Tweet

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

2 years

I've been on a journey moving from point-and-click GIS tools to working almost entirely in SQL, and it is 💯 but what isn't 💯 is the available guidance for common geo workflows in SQL, so I've written my own! "How to SQL: a Guide for GIS Users" #GIS #SQL

Tweet card media

How to SQL: a Guide for GIS Users

How to get started with SQL for GIS users! A tutorial on how to use Standard Query Language for common geospatial workflows.

www.helenmakesmaps.com

28

133

815

Last Seen Profiles

@CrosslandCal

@bokeplokalmalam

@zorritelly

@disladd

@selin_ryt

@nipponselectcom

@bokeplokalmalam

@A1204064994

@bokeplokalmalam

@olitzsbed

@riporip

@sam_raph

@Domchocola37752

@BitFinsider

@stw_pdg

@phenix_txt

@AndreottiL89696

@Teddybear629

@BinorRaja

@rendi_on

@KonnerwithaK

@av_madisonville

@junajuice

@ibubohay2

@tanutanu_7272

@TheBirdist

@bokeplokalmalam

@JoeLadner2292

@LurkerWatchings

@lillielee23

@DesirrioRiles

@bokeplokalmalam

@CadencewithanED

@quinn98602

@bokeplokalmalam

@sibervepunk

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

6 years

Catching the Liam Gallagher Finsbury Park gig from our flat ✊

103

1K

6K

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

10 months

Population density map of Japan 🇯🇵 Created for day 24 of the #30daymapchallenge (final week!!), theme: black & white. Created in CARTO (interactive version here: ) + labels added in QGIS because apparently that is my graphic design software of choice 😂

Tweet media one

21

592

3K

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

3 years

Please find attached

Tweet media one

29

303

3K

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

3 years

Population along the Nile in Egypt🗺️ #30daymapchallenge #day11 #3D #blender

Tweet media one

6

143

1K

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

4 years

Does working in #GIS make anyone else name_every_file_like_this? Like word documents, powerpoints... everything?

104

69

1K

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

4 years

Toponymical maps of GB, looking at the density of common forms in place names, full suite here 👉

Tweet media one

Tweet media two

Tweet media three

Tweet media four

25

186

937

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

3 years

World population by 1° longitude bands 🌐 #30daymapchallenge #day12 #population #qgis

Tweet media one

9

90

603

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

2 years

Mapping global hurricane tracks since 1842, data from @NOAA via @googlecloud public data, visualized in @CARTO

Tweet media one

10

106

579

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

2 years

SQL is just for managing data, right? Wrong! Check out my latest blog where I run through 5 tutorials for creating epic data visualizations & maps with SQL - like this dot density map! 👇👇👇

4

90

563

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

3 years

Airbnbs in London, looking at both the raw numbers and comparison with local population. #30daymapchallenge #day4 #hexagons

Tweet media one

9

70

564

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

3 years

Ever wanted to create an interactive webmap from scratch but not sure where to start? I've written this blog post showing how to easily code and publish your first web map with R, no prior coding skills needed and all tools completely free: #rstats

Tweet media one

11

93

541

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

3 years

ctrl+f " " is life #dataanalytics #dataviz 🧊

Tweet media one

7

68

442

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

2 years

Want to create joy plots like this? I got you 👇👇👇

Tweet media one

7

28

396

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

3 years

Keen to use blending modes in your mapping but don't know where to start? I've written a handy guide on how (easy), why (they look great) and when (often) to use blending modes in different software packages here: #gischat #GIS

Tweet media one

Tweet media two

Tweet media three

16

57

377

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

2 years

Guess what I mapped 😆🤦‍♀️

Tweet media one

88

36

352

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

3 years

Views from London's bridges 🌉 #30daymapchallenge #day10 #raster #qgis #arcgis

Tweet media one

4

43

340

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

4 months

15 QGIS layers later... 😁🤓

Tweet media one

9

18

346

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

2 years

Hi! I'm putting together a blog post for mapping in R for absolute beginners. What are some things that you struggled with when you started mapping in R? Or what is putting you off giving it a try? DMs open if you'd rather reply that way - thanks in advance! 😊

46

36

341

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

11 months

Day 2 of the #30daymapchallenge - Lines! This map shows journeys to work in England & Wales where more than 10 people make that trip. Thanks to @ONSgeography for releasing the data just in time! Designed in #QGIS with #CARTO & #bigquery doing the heavy lifting 💪

Tweet media one

1

31

341

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

3 years

A handy guide to house-buying in London: how many flat whites you'll need to skip to save for a deposit across the city. I'm not crying, you're crying. #30daymapchallenge #choropleth #day26 #qgis

Tweet media one

8

54

331

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

1 year

Pretending to be an international businesswoman... Spatial Data Science bootcamps Tokyo, here I come! ✈️

Tweet media one

13

11

321

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

4 years

Mapping the closest countries to Antarctica - found this so interesting to make! 🤓

Tweet media one

65

67

307

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

3 years

Cat Bells ⛰️ #dataviz

Tweet media one

13

12

302

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

4 years

Motorways and A roads of GB, coloured by the starting number of their road number (I have ONLY just learnt that this is a thing! Such a terrible geographer...) #geoshare 🌍

Tweet media one

18

64

295

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

11 months

Day 17 of the #30daymapchallenge : Flows. The most popular Citi Bike flows in NYC. Citi Bike have AWESOME geospatial data which you can access here: . This map only shows flows >= 10 in the first month of May this year. #qgis #gis #geospatial

Tweet media one

1

36

292

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

11 months

Day 10 of the #30daymapchallenge - North America; Walking catchments of Starbucks across Manhattan! The isolines were calculated in CARTO and then designed up on QGIS. 1/3 of the way there! 😊

Tweet media one

4

28

289

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

3 years

Density of pasty shops in England 😊 #30daymapchallenge #day5 #howisitonlyday5 #openstreetmap

Tweet media one

19

37

277

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

3 years

#Day30 of the #30daymapchallenge can you believe it!? The final theme is #meta so I've 'mapped' the solutions and tools I've used throughout the challenge by day and effort #RStats I'm tired 😊

Tweet media one

14

17

279

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

1 year

@jayforeman Here you go! I'm afraid I can't turn the basemap green but hopefully this is distinct enough? Let me know if you want LADs on there too. Here's the interactive if you need a different extent/zoom:

Tweet media one

6

1

282

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

4 years

Visible sky map of the City of London, created using @EnvAgencyGeomat LiDAR data #30DayMapChallenge #Day13 #Raster #QGIS

Tweet media one

4

32

277

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

11 months

🏙️ Building heights of Manhattan [click to expand] Day 3 of the #30daymapchallenge : Polygons! Created in QGIS with NYC Open Data, full details here 👉

Tweet media one

2

29

274

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

11 months

#Day15 of the #30mapchallenge : The Geography of Central London toilets! The theme for today is #OpenStreetMap and I wanted to map something that is really hard to find in the data world, to highlight why OSM is so important to the #geospatial industry. #QGIS #CARTO #maps

Tweet media one

10

32

273

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

3 years

What are the most common English supermarkets in different areas? #30daymapchallenge #day16 #qgis #urbanrural

Tweet media one

7

41

262

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

2 years

Exploring car ownership in London: more households don't own a car in pink areas, and more do in blue - explore the interactive version here 👉 🚗🚗🚗

10

62

261

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

4 years

20 years of basking shark sightings 🦈 #30DayMapChallenge #Day1 #Points #QGIS Data from @NBNAtlas

6

46

264

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

3 years

Post-graduation movements of students in England & Wales #30daymapchallenge #day2 #lines #qgis

Tweet media one

6

29

260

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

3 years

The Mariana Trench 🌊 #30daymapchallenge #day15 #water #Rstats #illustrator

Tweet media one

3

40

251

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

3 years

Iceland's population in 3D #dataviz #geoshare #blender 🇮🇸🗺️

Tweet media one

3

36

257

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

4 years

#justgisthings

Tweet media one

10

29

250

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

4 years

Something cheeky for day 3... Drive times to @NandosUK ! 🐔 #30DayMapChallenge #Day3 #Polygons #Illustrator

Tweet media one

10

30

246

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

3 years

How ANNOYING in QGIS are those hairline gaps between polygons when you have transparent/no stroke? If you pop into symbology > stroke > stroke colour expression and type " @symbol_color ", the colour will auto-match your fill and the gaps will disappear! #quickmaphacks #QGIS

Tweet media one

Tweet media two

6

23

245

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

1 year

#GIS job descriptions be like "Must be an expert in SQL, Python, R, Javascript, FME, every ESRI tool ever made, QGIS, a really niche remote sensing programme HR found on chatGPT, and... excel." You just know which of those you'll be using the most #gischat

15

18

241

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

2 years

The first dataviz I ever made in R was this joy plot! It's a great starter viz for mappers allergic to coding (like I used to be!) Check out my tutorial on how to create these here: 🗻 #rstats #dataviz

Tweet media one

8

28

234

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

11 months

Number of pubs per 1,000 residents of London, created for the #30daymapchallenge 🍻 Day 13: Choropleth! Loving the opportunity this challenge gives us to undertake important data journalism. Created in #QGIS with data from @OSMLondon & @CARTO

Tweet media one

6

21

238

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

2 months

FINE I'll make a map of the 376 UK places containing the word "Bottom." My personal favourite? "Cringley Bottom" If your "Bottom" isn't on this map, please consider contributing to @openstreetmap 🗺️

Tweet media one

18

36

236

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

3 years

Excited to share that today I join the @CARTO crew as a geospatial advocate, here to get you all (more) excited about spatial analysis! Find out more about us here:

Tweet media one

19

2

227

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

3 years

Something a bit experimental for today: average monthly temperature by country, ordered by the latitude of the country's central point #30daymapchallenge #day27 #heatmap #rstats #ggplot #anythingisamapifyoubelievehardenough

Tweet media one

12

34

226

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

1 year

Today I'm starting a new #QGIS cartography project! I'm planning to create a big canvas of Tokyo for our living room, vaguely-inspired by one of my favourite video games: Persona 5! Will be sharing updates on here to keep me on track, with methodology included on the way 🤓 1/2

Tweet media one

Tweet media two

Tweet media three

6

27

209

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

1 year

📣 New blog drop! A guide to free GIS data sources, ft. 100% biased and subjective movie-style reviews from me 👉 Currently global & UK sources included, with more to come! #gischat

4

51

200

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

2 years

When was #openstreetmap last updated in London? #30daymapchallenge #day8

Tweet media one

6

22

199

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

2 years

I am NOT playing this year definitely not but what's the harm in one little map? Street trees of San Francisco 🌴 #30daymapchallenge #day1 #points #carto @CARTO But this is the LAST one definitely

Tweet media one

4

12

195

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

11 months

#30daymapchallenge day 1: Points! Down Under: A dot density map of Oceanians & Antarcticans living in London. Analysis in @CARTO , visualization in @qgis , data from @ONS

Tweet media one

10

15

199

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

4 years

First adventure in ggraph - exploring flows along the second best TfL line - the Victoria Line (DLR is #1 obviously...) - shout out to @TfL for the great #opendata 🚇

Tweet media one

12

12

194

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

2 years

I knew I could find the crossover #mappymeme

Tweet media one

7

17

193

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

10 months

3D map of all 1.1 million NYC buildings at a 1:1 scale... and it's interactive! Explore here 👉 Day 3 of the #30daymapchallenge 's theme is 3D. Created with CARTO & coffee 🌃 #Geospatial #dataviz

Tweet media one

2

29

191

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

4 years

Are Londoners more likely to experience deprivation if they live on a borough boundary? Genuinely thought this was going to generate some insightful results but the answer is... not really! #30DayMapChallenge #Day23 #Boundaries #QGIS

Tweet media one

15

29

193

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

2 years

Per-km traffic accidents on London Streets 2018-21 - explore the interactive version here 👉 #30daymapchallenge #day2 #lines #carto #andabitofcanva #thisisthelastone

Tweet media one

6

17

190

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

9 months

One of my favourite quick #QGIS hacks - automating the colour of polygon strokes! [🔊sound on] You can also use this technique to set label colours... And pretty much anything!

3

23

187

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

2 years

Who's coming to my @bcsmaps workshop tomorrow? It's all about an intro to using SQL for mapping & spatial analysis, ft. these maps!

Tweet media one

Tweet media two

Tweet media three

Tweet media four

8

20

182

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

7 years

Our city is so fortunate to have the most incredible, heroic and selfless emergency services and we couldn't be more grateful #londonbridge

1

47

175

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

11 months

Day 6 of the #30daymapchallenge : A neon map of Tokyo's metro [click to expand] The great thing about this challenge is getting to create things that I can stick up on my empty walls! #qgis #openstreetmap

Tweet media one

7

24

182

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

3 years

Boarders and alighters on the London Underground Network #30daymapchallenge #day1 #points #qgis Source: @TfL RODS data

4

28

176

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

2 years

X. comes. first.

Tweet media one

13

22

169

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

11 months

Day 16 of the #30daymapchallenge : Oceania... Shark incidents in Australia in the last 100 years 🦈 Awesome data from the Australian Shark-Incident Database - so interesting how the historic data has been sourced! Full info here > #QGIS #GIS #Geospatial

Tweet media one

3

28

167

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

3 years

Penultimate day of the #30daymapchallenge ! Who else needs a nap!? #day29 #null : Where is no one? The areas of the world with less than one person per km²

Tweet media one

4

23

165

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

9 months

Can we just change the word to "chloropleth" and be done with it now please?

12

13

165

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

3 years

I've been drafting a blog about the pros and cons of mapping with hexagons. The draft is 15 pages. HOW HAVE I WRITTEN 15 PAGES ABOUT HEXAGONS!?

19

1

156

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

11 months

Distance to the closest pub along England's @ThamesPathNT 🚶 Created for day 7 of the #30daymapchallenge for the theme "Navigation." I think this is the most important navigation exercise of all 😁 🍻

Tweet media one

4

16

152

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

2 years

You’ve probably seen hexagon grids on maps & maybe even created some of your own... But have you ever stopped to think about why? Catch my blog on why hexagons are the bestagons, ft regular vs irregular grids, gerrymandering, H3 grids and more! #geospatial

Tweet media one

Tweet media two

Tweet media three

9

20

149

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

2 months

My favourite map I've worked on this week - an example of how you can build Parameters into maps for a really user-centric experience, this example focusing on sites impacted by hurricanes.

2

15

147

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

6 months

⚡️Create a firefly map in QGIS in 50 seconds! All you need is: 🌃 A dark base 🗺️ A point layer 👀 This video! [sound on - if you can bear my voiceover!]

3

15

142

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

10 months

Day 26 of the #30daymapchallenge : Minimalism. Comparing the geography of Pret & Greggs. To prepare for this map I ate two sausage bean cheese melts this weekend. #justforfun #QGIS #GIS #maps

Tweet media one

4

11

145

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

3 years

#Day28 of the #30daymapchallenge : theme #theearthisnotflat ft Google trends data on interest in the term "flat earth"

Tweet media one

5

14

141

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

2 years

Hellvellyn ⛰️

Tweet media one

3

5

133

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

3 years

Elevation along Hadrian's Wall path🏞️ #30daymapchallenge #day21 #elevation #blender

Tweet media one

1

11

132

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

3 years

This week on #quickmaphacks - ever want your QGIS symbol to be a different size on the map as it is in the legend? Don't faff around with creating different layers - just enter the text below into the size expression box, changing the text highlighted as needed - boom! #QGIS

Tweet media one

3

13

132

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

4 years

Today's theme in the #30daymapchallenge is Covid so... here's a map about banana bread! 🍌🍞 #day25 #covid #qgis #excel

Tweet media one

6

15

129

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

4 years

Place name maps of GB, take 2! 🗺️ Thanks for your requests, there are some below and more on insta, notes on method in thread 👇

Tweet media one

Tweet media two

Tweet media three

Tweet media four

7

32

128

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

2 years

If you're looking to upskill in #cartography and #dataviz this year, read through guide to blending modes! Ft. descriptions of the major blend types, how to use them in different software packages, and the best uses for the key modes! Happy blending!

Tweet card media

How-to: Blending modes

People often ask me why I use QGIS so much more than another common GIS platform (cough), and for a long time there was one simple answer. Blending modes. The day I learned about blending modes was...

www.helenmakesmaps.com

1

22

127

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

3 years

Paying my geographer's dues at the John Snow, Soho

Tweet media one

Tweet media two

Tweet media three

5

2

127

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

3 years

Shapefiles are ok

@MorningBrew

Morning Brew ☕️

3 years

Start an argument in your industry in just 1 sentence.

391

38

412

10

3

126

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

3 years

A very scientifically, topographically correct 3d visualisation of the world's best gorge #30daymapchallenge #day15 #mapwithoutacomputer

Tweet media one

5

9

128

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

2 years

I'm a bit addicted to firefly maps 🌃 I love how they so simply convey the density of data like a heatmap, while allowing you to understand individual data points like a standard point map. And they pretty.

Tweet media one

2

6

128

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

3 years

Morning trips on London's Central line (the middle bit), data @TfL Rods 2017 #30daymapchallenge #Red #day6 #Rstats #definitelyamap

Tweet media one

5

8

125

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

10 months

Public transport accessibility levels (PTAL) in London vs Population 🚄 🚌 Created for day 29 of the #30daymapchallenge with the theme of "Population." #QGIS #GIS #transport

Tweet media one

5

16

126

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

7 months

My favourite maps from my recent trip to Japan: a thread! A collection of some of my favourite maps from my recent trip to Japan! 1. 3d visualization of earthquakes showing depth, coloured by plate - showing how plates are sinking over time - in the National Museum of Science

Tweet media one

1

17

127

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

3 years

Why are pub quiz geography round questions always like "Name the capital of X" and not "What does LiDAR stand for?" or "Explain MAUP in 200 words or more with real life examples?"

7

8

123

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

3 years

Walking time to @Pret in Central London, based on @OSMLondon data #30daymapchalllenge #day3 #polygons #QGIS

Tweet media one

3

14

123

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

2 years

Hey #gischat I'm putting together a list of great geospatial and data events for 2023 - which events did you go to last year that you loved? Primarily looking for UK, USA, Canada & hybrid events. Thanks!!

31

20

123

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

3 years

I've been missing the #30daymapchallenge so wrote this round-up blog post about my favourite maps I've seen from each day across the challenge, featuring these talented legends 👇🗺️ (not Chandler and Joey, scroll down...) Read it here:

7

19

122

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

2 years

Fell down an OSM rabbithole today... discovered the - particularly amazed at the quality of OSM building data in Kibera, SW Nairobi, and then discovered the amazing @mapkibera project! And here they are mapped! 👉 #day3 #polygons #30daymapchallenge

Tweet media one

4

21

122

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

4 years

Which type of Joy plot are you more into - traditional (white lines) or filled (darker blue)? My eyes are tired and I can't decide!

Tweet media one

Tweet media two

24

4

122

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

3 years

When is data not data? When it's a picture.

Tweet media one

6

19

118

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

11 months

Day 8 of the #30daymapchallenge : Where can you find the Big 5 in Africa? This is getting tough already! Discarded ideas include: Sales of Toto's "Africa" worldwide and a map of where the rains fall down in Africa. So dibs on those for next year! I'm tired 😊 #QGIS #CARTO

Tweet media one

4

17

121

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

1 year

One of my favourite maps I ever made of the Mariana Trench in the Pacific Ocean 🌊 Learn how to make ridgeline plots like these here 👉

Tweet media one

1

13

113

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

3 years

Did you know one of the oldest known maps in the world is this engraved Mammoth tusk? It's from est. 25,000 BC and depicts the area around Pavlov, Czechia - how cool is that!? 🤓

Tweet media one

5

11

110

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

2 years

"Oh, I thought they weren't important so I just deleted them." #gischat #mappymeme

6

14

111

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

10 months

Where is North? Mapping the geographic, magnetic & geomagnetic north, created for day 22 of the #30daymapchallenge with the theme "North is not always up." Fascinating subject to explore! Really recommend the resources at

Tweet media one

2

18

113

@helenmakesmaps

Helen McKenzie

@helenmakesmaps

4 years

Them: You have to put a North arrow and scale bar on every map, those are the rules Me:

4

13

107