YELLOWFIELDS is the design practice of Jason Clark, a cartographer and graphic designer, specialising in the creation of maps and (info)graphics that inform, engage and reveal; mapping environments, experiences and information. This has included feasibility studies, concept development, design, production and project management—applied most extensively within the fields of transportation (transport information systems), town planning, urban design, architecture and wayfinding.

“Making the simple complicated is commonplace; making the complicated simple, awesomely simple, that’s creativity.”

—Charles Mingus

A multi-disciplined practitioner

Jason has over 30 years of experience in both the public and private sectors. His training, education and experience are firmly grounded within both the disciplines of cartography and graphic design. This has resulted in a much wider and deeper understanding of both disciplines—their history, theory and techniques—and of their application. This also forms the basis of his personal research interests.

Whilst Jason’s original training and early experience covered scribing and hand-drawing maps, he now employs a wide range of digital tools, including Adobe Illustrator, Cartographica GIS, QGIS, SketchUp and numerous other specialist utilities. Life is much easier these days!

Extensive experience

Jason has worked as an independent cartographer and graphic designer for nearly two decades, gaining additional understanding and knowledge of wayfinding, from strategy through to detailed signage design. It has also included the numerous processes and factors that impact upon this field, such as urban analysis, movement planning, information architecture and planning, user-centred design, 2D and 3D visualisation, map design, pictogram design, typeface selection, production artwork and design guidelines.

Prior to this he spent over 10 years working in London, firstly as a Graphic Designer and Cartographer at Nathaniel Lichfield & Partners, now Lichfields (national town planning, design and economics consultants), then latterly, as a Principal Consultant in Visual Communications at Steer Davies Gleave, now Steer (international transport, infrastructure and economics consultancy). Jason’s early career was spent in local authorities running graphic design and cartography functions. He implemented a digital workflow solution between a geographical information system (GIS) and desktop publishing (DTP) system in the mid-90s that saw the the UK’s first Local Plan produced that was derived from large-scale Ordnance Survey (OS MasterMap) data—vector, not raster as was the norm then.

“A designer knows he has achieved perfection not when there is nothing left to add, but when there is nothing left to take away.”

—Antoine de Saint Exupéry

Collaborative practice

The practice is fundamentally collaborative, whether with the client directly, and/or with partners across other disciplines. Process should be the focus, not pre-determined solutions; the right design should emerge naturally if the process and methodology is correct.

Today Jason is focused on cartography (map design and production), including illustration and information design. This includes all kinds of special purpose and thematic mapping such as concept (abstract) mapping, line diagrams, location plans, grounds/estate maps. visitor maps, gaming maps, recreational maps, transport network plans and other topographic maps. Though based in south Devon, Jason has worked on projects throughout the UK and much further afield, including Italy, Russia, United Arab Emirates and the United States. He continues to do so for a wide range of clients across all sectors.


Jason is a Fellow of the British Cartographic Society (FBCartS) and a Fellow of the Royal Geographic Society (FRGS).

This site represents a snapshot of selected projects over more recent years. Whether you need an office location plan or an entire city mapped for a pedestrian wayfinding scheme, Jason is happy to chat about your ideas or requirements, so drop him a line. A resumé, Terms & Conditions (T&Cs) of engagement and his Professional Practice note are available on request.

Rail/Bus Connectivity Map

Map showing rail/bus connectivity in the West of England (extracted as spread from distributed document)

Greengauge 21 champion high-speed rail on a day-to-day basis, but they also look to reveal other opportunities to improve public transport provision. [ … ]

Beyond HS2 Graphics

Chord diagram to demonstrate rail connectivity between UK cities

Commissioned by Greengauge 21, high-speed rail ‘champions’, Yellowfields created a mix of maps and infographics for a 200-page technical report which offers a comprehensive view of what Britain’s railway should look like by the middle of the century. [ … ]

Game Reserve Map

Extract from a map created for a South African game reserve

A land owner in South Africa commissioned Yellowfields to design and produce a map that depicted their 27,000 ha game reserve. [ … ]

Campus Plan

Example ‘heads-up’ map panel used on one of the wayfinding totems on the Goldsmiths University campus

Goldsmiths, University of London, commissioned Yellowfields to create a new campus map and sign artwork [ … ]

Square Up Wall Map

Extract from the wall map created for Square Up to use in their London HQ reception area

Square Up, a global financial services company, contacted Yellowfields to create a map-based artwork to cover a wall in their London HQ reception area. [ … ]

Bay Area Bike Share Maps

First concept extract of on-street mapping created for the Bay Area Bike Share Scheme, San Francisco, directed by City ID

Leading wayfinding practitioners, City ID, asked Jason to help create the base cartography for the Bay Area Bike Share project in San Francisco, USA. [ … ]

Ham & Petersham Map

Map developed for a book, adhering to typographic and graphic styles

Nick Avery Design commissioned Yellowfields to produce a supporting map for a book designed for self-publishing author, Vanessa Fison. [ … ]

Town Planning Graphics

Example document spread from a planning site promotion document

Starting with the first ever project, Yellowfields has provided supporting services to chartered town and country planning organisations. This has included planning application plans, Supporting Planning Statements (SPS) and Design and Access Statement documents (DAS). [ … ]

Riverside Wayfinding Map

Extract of mapping, including 3D landmarks, developed for Derby City Council for on-street wayfinding

Engaged by Derby City Council (DCC), Yellowfields has designed and produced the mapping for four new wayfinding signs. [ … ]

Walks of Churchill Map

Map developed for a book, adhering to typographic and graphic styles

Yellowfields was commissioned by Nick Avery Design to design and produce two maps to be used in a walking tour guide on Winston Churchill. [ … ]

Zombies, Run! Map

Imaginary geography created for a board game, ’Zombies, Run!’

A rather unusual request arrived from Six to Start, an independent games developer and entertainment company based in London. [ … ]

Mapping Samlesbury Hall

Extract of the visitor map created for Samlesbury Hall Trust

Yellowfields was engaged by Samlesbury Hall Trust, who maintain and run the historic house and grounds in Lancashire of the same name, to re-design and produce a new visitor map and accompanying floorplans. [ … ]

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