Ordnance Survey
OS Map of London North: Explorer 173
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The OS Explorer map of London North is a must-have on your next trip to the capital.
Explore lively streets stretching from the City into North London. Wander bright avenues linking the West End to outer boroughs. Discover green pockets balancing busy roads and bustling corners.
Trace old routes weaving from Enfield’s centre toward open parkland. Climb gentle rises near Harrow overlooking sweeping suburban skylines. Roam Ealing and Watford as they blend culture with calm neighbourhoods.
Stroll across Hampstead Heath for a breath of fresh air. Follow paths up Alexandra Palace Hill for sweeping skylines. Admire the atmosphere around bustling Camden.
Visit North and West London for city and nature combined. Experience urban life with plenty of green spaces to pause.
What's in OS Map Explorer OL20?
Features 14 National Trails and Recreational Paths, including the Capital Ring, Dog Rose Ramble, Grand Union Canal Walk, Hertfordshire Way, London Loop and Thames Path.
Highlights natural features, such as Lee Valley, Watling Chase, River Thames, and River Lea/Lee.
Covers locations including Ealing, City of London, Harrow, Watford, Enfield, Pinner, Islington, Tottenham, Southall, Chiswick and West End.
Why an OS Explorer Map?
Our Explorer maps are perfect for day-tripping, extensive hikes, and cycling. They come in both Standard and Weatherproof, so you'll never get caught out in a storm.
Prepare for your next day out with confidence. Plan the ideal short, relaxing stroll or long, challenging hike. Discover the perfect route and enjoy your journey ahead.
Spot local pubs for pauses on your adventures. Find camping and caravan sites for overnight stays. Follow clearly marked rights of way, permissive paths and bridleways.
Perfect for planning, amazing for adventuring.
Specifications:
- Standard Publication Date: 16/09/2015
- Weatherproof Publication Date: 16/09/2015
- Map Format: Folded
- Physical Size - Folded: 24 x 1 x 13.4cm
- Physical Size - Unfolded: 127 x 95.5cm
- Sided Format: Double-sided
- Free Mobile Download: Yes
- Cover Image: Little Venice

Free digital download
Receive a free download with purchase of this map. Find out more at Mobile Download FAQ.

Explorer 1:25,000 Scale
Every 4cm on the map is 1km, making our leisure selection the most detailed maps; perfect for activities such as walking, running, and cycling

Be ready for anything
Find marked public rights of way, byways, trails, cycle routes, bridleways, road networks, & railway lines

Not sure which map you need?
Discover which area this map covers with the map area overview below or read more about our different types of maps

Topographic mapping
Highly detailed contour mapping highlighting variations in terrain and everything you would expect from a map

Explore local landmarks
Discover camping sites, picnic spots, tourist information, car parks, historical sites, pubs, & much more
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Delivery times
Order before 3pm weekdays for:
- Free standard delivery in up to five working days
- 1st Class delivery in 1-2 working days
- Priority Express Next Day delivery on the next working day
OS Historical 1896-1904 Maps, Relief Maps and Custom Made Map orders will take one extra day for printing. Framed and canvas products are handmade and usually take 10-12 working days to dispatch. If you order on a bank holiday we'll start on your order on the next working day. Standard delivery for OS Historical 1896 - 1904 Maps and Relief Maps are sent RM 48, and Next Day Delivery will be sent out Royal Mail 24.
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Sorry, we do not currently deliver outside of the UK.
See Full Delivery information here.