🔊🎶Meeting the challenge🎶🔊
A map shared on each day of Nov 2025:
25 brand new maps + 5 'classics'.
See my timeline or my @linkedin.com page @mildthing99 at the other place
#GoGIS4GA #GIS
🙏🎶Mix of 'Crosswalk' @TEEDinosaurs
🙏 @tjukanov.bsky.social who started #30DayMapChallenge
Day 30: Makeover

🔊Walking On The Moon🔊
#Apollo15 26 Jul-7 Aug 1971
'Falcon' LM lift off from Hadley-Appenine 2 Aug 1971
Georeferenced with #MediaLayers in @esriuk.bsky.social ArcGIS Online
#3DScene w Moon Elevation Surface DEM
incl other Apollo missions: arcg.is/1GmKHG7
#30DayMapChallenge Day 18: Out of this world

🔊Thrown Around🔊
Atlantis/Conic Equidistant/Equirectangular; Orthographic/Patterson/Stereographic/Waterman Butterfly/Winkel Tripel
#SST Nov 2025 centred on #NullIsland
🙏 @cambecc.bsky.social
🙏🎵 @jamesblake
#30DayMapChallenge #GoGIS4GA
Day 19: Projections #GISDay earth.nullschool.net#current/ocea...

🔊🎶*Bohemian Toponymy*🎶🔊
50 yrs ago in 1975 Queen's 'Bohemian Rhapsody' tops UK chart
*Is this the real place? Is this just fantasy?*
Data🙏@natlibscot.bsky.social OS 1900s > 'Bohemia'
maps.nls.uk/projects/os1... > ArcGIS Online
#30DayMapChallenge #GoGIS4GA
Day 24: (A Day At The) Places + their names

🔊🎶Urban river restoration Lima, Peru with sub-fluvial Lima Expresa road under Rio Rímac #braiding
#PEPRR tinyurl.com/yttxekkw
1908 map #MediaLayers🙏via @royalscotgeosoc.bsky.social
🎶🙏 Sofia Kourtesis
Map arcg.is/0nOPDj0 @esriuk.bsky.social ArcGIS Online
#30DayMapChallenge Day 26: Transport

🔊🎶Hexagons of Grammichele
Sicily, Italy: #PlannedSettlement 1693 after #earthquake at Occhiolà
👣5.34km/3.32mi via @_outdooractive_
@esriuk.bsky.social ArcGISOnline w #FireflyIcons by
@johnelson.bsky.social
✝️RIP Ornella Vanoni d 21 Nov 2025
arcg.is/e9OLL
#30DayMapChallenge Day 25: Hexagons

🔤🌐The Earth spells it out🌐🔤
#YourNameInLandsat uses lookie-likie letters in satellite images from @NASA_Landsat over the last 50 years managed jointly with @USGS
#EarthObservation #RemoteSensing
landsat.gsfc.nasa.gov/apps/YourNam...
🙏 @thenasaearth.bsky.social
#30DayMapChallenge Day 29: Raster

An excellent way to investigate spatial variations in placenames, incl parts of placenames:
'British Placename Mapper'
🙏 to Robin Wilson @sciremotesense
using @ordnancesurvey.bsky.social data incl 'Starts with' 'Ends with' etc
#30DayMapChallenge Day 28: Black
placenames.rtwilson.com#W3sidGV4dCI6...

🔊Using #GIS to visualise the impact of physical and human processes on coasts🌊
@oaknational.bsky.social lesson stepped explanation demonstrating #GIS integration at KS4 GCSE Geography for coastal erosion on Holderness peninsula UK
tinyurl.com/mwpn2229
#30DayMapChallenge Day 23: Process

🔊🎶On the border*🎶🔊
The England-Wales border follows old meanders of the River Vyrnwy e.g. the #ShropshireWay crosses border 6 times in 6 km betw Pentreheylin Hall to Llanymynech
🙏 🎶 @alstewartinfo
🙏 Route plan + #FlyoverVideo @_outdooractive_
#30DayMapChallenge Day 27: Boundaries

🎹🔊 Isn't it iconic?🔊🎹
World piano manufacturers
*There are places I'll remember*
Iconic 'In My Life' original speed
Iconic solo by George Martin
Iconic Beatles album 'Rubber Soul'
#MusicTeacher #GeographyTeacher
#30DayMapChallenge Day 21: Icons
Map: arcg.is/1zK5Sj0

🔊🐳'A prison-like aquarium' 🐳🔊
Threats to #BlueWhales in the Gulf of Ancud, Chile #EcosystemFragmentation also happens in the sea
🙏@Seasaver @BedrinanaLuis @ballenaschile
Full video 6m: www.youtube.com/live/rMW2-3f...
#30DayMapChallenge
Day 22: Data challenge: Natural Earth

🔊💧Whatever happened to Capel Celyn?💧🔊
OS 6" 1830s-80s (county layers) v @esriuk.bsky.social
Imagery v @ordnancesurvey.bsky.social 1:25000
#GIS 🚰#Dams 🚰
🙏@natlibscotmaps @BritishPathe
🙏🎵Jon Hopkins - 'Cold Out There'
#30DayMapChallenge Day 20: Water
maps.nls.uk/geo/explore/...

🔊*Tomorrow Never Knows*🔊
By 2125, will remoteness mean that these places can remain much the same as now?
Created in @esriuk.bsky.social ArcGIS Online using @johnnelsonmaps.bsky.social's #Firefly symbols 🙏#Beatles
#30DayMapChallenge Day 12: Map from 2125
Map: arcg.is/TWuOO1

🔊Using #GIS to visualise data in a webmap
Stepped explanation > #CreateBuffers analysis tool in @esriuk.bsky.social ArcGIS OnLine > visualise exclusion zones around #Merapi volcano
@oaknational.bsky.social #GIS integration KS4 GCSE Geog
tinyurl.com/yh56fjw3
#30DayMapChallenge Day 13: 10 minute map

🔊'From Bank to Bet Fred'🔊
@openstreetmap.bsky.social v map of Dundee shops in Murraygate 1991 using #MediaLayers in
@esriuk.bsky.social ArcGIS Online
#3DScene > urban retail land use change.
🙏 UoD Archives
#ThinkForAMinute #Housemartins #NEA
arcg.is/1f8zuf0
Day 14: Data challenge: OpenStreetMap

🔊'London Under Fire' 🔊
'12 Postcards Passed By The Censor'
Story Map inspired by the excellent blog by @alondoninheritance.bsky.social alondoninheritance.com/thebombedcit...
Georef then #GIS mapped in @ArcGISStoryMaps
🎵 @psbhq.bsky.social 'London Can Take it' ❤️Ukraine
#30DayMapChallenge Day 15: Fire

Wolf territories, Voyageurs National Park, Minnesota
#Media Layers in @esriuk.bsky.social ArcGIS Online
🙏Voyageurs Wolf Project #Wolves
FB: tinyurl.com/26mpj8eb
YT: youtube.com/watch?v=sUkB...
#30DayMapChallenge Day 16: Cell
2D Web map: arcg.is/1Oz0aa1
3D Scene: arcg.is/0KaLfX

Isle of Wight Slow Ways Topological Map created using AI ChatGPT
Walk betw any town, city and national landscape in Britain 10,000 A-to-B walking + wheeling routes, mapped and checked by🙏 @slowwaysuk.bsky.social Dan Raven Ellison
beta.slowways.org
#30DayMapChallenge Day 17: A new tool

🔊*The shape you're in*🔊
Do you recognise all of these topological countries?
Rectangle, Triangle, Crescent, Teardrop, Hexagon, Circle...
(the last one is the world's 'most circular country' with a roundness index of 0.934)
🎵🙏
@edsheeranbr.bsky.social
#30DayMapChallenge Day 11: Minimal map

🔊🎶Let's go back 🎶🔊
GPS track of a cloudless recent ascent (+ descent!) for a long-awaited return to the magnificent Cader (Cadair) Idris, Eryri Nat Pk, N Wales @natreswales.bsky.social
#FlyoverVideo outdooractive_uk + @jungle4eva.bsky.social #30DayMapChallenge
Day 4: Data challenge: My Data

🔊How to use #GIS to visualise physical processes at different types of plate margin e.g. convergent plate boundary: a stepped explanation
@oaknational.bsky.social lesson demonstrating #GIS integration at KS4 GCSE Geography #TectonicHazards
tinyurl.com/3zecmytx
#30DayMapChallenge Day 5: Earth

🔊How has phys geog/tectonics influenced biogeographic realms (faunal boundaries)?
3D: #WallaceLine #LydekkerLine #WeberLine
@esriuk.bsky.social ArcGISOnline #Scene GEBCO 10x exagg
#Evolution #Marsupial v #Mammal @TEEDinosaurs
#30DayMapChallenge Day 6: Dimensions
arcg.is/GOHq90

🍃🌉On this day 1940🌉🍃
'Galloping Gertie' Tacoma Narrows Bridge collapsed in 40mph/64kmh winds. Where were the viewpoints?
Tacoma-Kitsap pen link gone until 1950.
Created in @Esri ArcGIS Online using #MediaLayers
Webmap: arcg.is/0j9ibq
#30DayMapChallenge Day 7: Accessibility

🔊#JourneySticks are an ancient geographical information system #GIS used for millennia.
Glimpses of a brilliant KS1 Y1 lesson 'Making a map of our route' by @oaknational.bsky.social stepping 'old' #GIS and 'new' #GIS + @aphextwin.bsky.social
#30DayMapChallenge Day 9: Analog
tinyurl.com/35y5wf5r

🔊Do you know the way to Kathmandu?
3D map: 2025 Imagery v 1967 Corona satellite via Nepali Times #MediaLayer @esriuk.bsky.social ArcGISOnline #Scene + GEBCO bathymetry 3.5 x exagg
c 200%⬆️ #UrbanSprawl शहरी विस्तार
+ @johnmaus.bsky.social 'Do Your Best'
#30DayMapChallenge Day 8: Urban
arcg.is/1iPyW10

🗺️ 113 year old maps reborn 🗺️
1912 sketch maps by teacher George Nebel for a field trip from Wood Street School #Woolwich to Isle of Thanet, Kent (they travelled by ship!)
#MediaLayers @esriuk.bsky.social ArcGIS Online
#30DayMapChallenge Day 9: Analog
Map🙏 Kent Archives
arcg.is/1nr55b1

Using #GIS to map the track of a #TropicalStorm:
Stepped explanation: how to use georef data to visualise #TyphoonRai (Odette) 2022 in @esriuk.bsky.social ArcGISOnline
@oaknational.bsky.social lesson demo for #GIS integration at KS4 GCSE Geography
tinyurl.com/352hdcka
#30DayMapChallenge Day 10: Air

🔊Using #GIS to visualise global trends in urbanisation
A stepped explanation demonstrating how to create a #GIS choropleth webmap using shapefiles
@oaknational.bsky.social lesson demonstrating #GIS integration at KS4 GCSE Geography
tinyurl.com/3ksbwwmy
#30DayMapChallenge Day 3: Polygons

30dayMapChallenge Day 1 Points arcg.is/1ab5ua4
School Y7 food investigation. Data collected from 3 year 7 classes using Microsoft, map and symbolised in Esri ArcGIS Online. Students can then investigate where their food comes from.
#GISinschools
#HowiusedGIStoday

#GIS

#ArcGISOnline