Cartographer and graphic designer, Jason Clark, started trading as Yellowfields back in 2000 with the aim of providing thoughtful, well-crafted and bespoke cartographic and graphic solutions to clients as a B2B service. Today, with more than 35 years of experience spanning both the public and private sectors, Jason still considers himself very much a ‘journeyman’ in the professional sense.

Whilst most of Jason’s experience has been focused on cartography, he is also experienced in the disciplines of graphic design and wayfinding. These form part of his broader offer in visual communication and visualization. From his studio, based in South West Scotland, Jason undertakes work both independently and as a sub-consultant to a wide-range of organisations wishing to add to or extend their skill set and experience for ad-hoc specific projects.

A Brief Resumé

Whilst studying for his Diploma in Land Use (Geographical Techniques) at Luton College of Higher Education, Jason spent a year at the Institute of Terrestrial Ecology (now UKCEH) as their Cartographic Artist. After gaining his Diploma, Jason began his career in the public sector as a Planning Technician in the Forward Plans Group of Luton Borough Council. After a short stint, he then joined Aylesbury Vale District Council Forward Plans Team as their Senior Graphic Designer & Cartographer.

After a stint working in the public sector, and after gaining an MA in Design from Central Saint Martins College of Art and Design, Jason moved to the private sector, joining the UK-wide planning, development and economics consultancy, Nathaniel Lichfield & Partners (now Lichfields) as Graphic Designer. A short time later, he continued his London-based work experience and joined the international transport consultancy, Steer Davies Gleave (now Steer), where he progressed to Principal Consultant in Visual Communications before embarking upon his journey in self-employment.


  • 3D Modelling
  • Advice/Consulting
  • Design Research
  • Desktop Publishing
  • Editorial Design
  • Infographics
  • Information Design
  • Information Strategy
  • Interactive Mapping
  • Network Maps
  • Spatial Analysis (GIS)
  • Technical Illustration
  • Transport Maps
  • Visitor Maps
  • Wayfinding Maps
  • Wayfinding Strategy.

Jason takes continued professional education seriously, ensuring he keeps up-to-date with technologies and techniques, acquiring new knowledge and skills as required. Jason is an Accredited Master of the Society of Illustrators, Artists & Designers (MSIAD).

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Ayrshire contour map