Testimonials

  • “I'll have a geologist in my pocket with these Four Corners Grand Canyon hiking maps. Ahh, the detail, the info... I feel smarter now just looking at them!”

    Mark Bellncula, Bell & Koola GIS Ops

  • "The Grand Canyon Geologic Trail Maps are an absolute must for hiking in the Grand Canyon. They are the difference between going to an art museum and saying 'thats pretty' and going to an art museum and learning the motivation, the techniques, the stories behind what you are looking at."

    Ryan Huggins, PineSpire

  • "Highly educational."

    Mark G., Backpacker

  • “When we need an accurate, creative, detailed, and easy-to-read map to add context to articles we publish in The Gulch magazine, there's no better cartography service than Four Corners Mapping & GIS; very professional, fun to work with, and highly recommended.”

    Stephen Eginoire, The Gulch Magazine

  • "Fantastic detail, expert narrative, quality production and on-the-trail functionality. These maps leap off the page!"

    Charlie T., Retired

  • "Maps really do open up our eyes to the world around us. This is a great map."

    Mark G., Backpacker

  • "Recommending them to everyone on the trip for enhancing our understanding of the geology and planning some side quests!"

    Dave S.

  • “I love your maps! My group recently hiked down the Tanner Trail and we made sure to check out the key geologic features you highlighted. In fact, I as we sat in camp atop the Redwall on the first day I reviewed with my buddies what we had passed already and previewed what we should look for the following day. I would buy a map for every trail in the Canyon!”

    Joe A.

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