We are passionate grassroots advocates focused on protecting, restoring, supporting, and sustainably sharing natural landscapes with interested audiences. 

Because we have been mapping and charting hundreds of miles in some of the most special places for over 20 years. Our adventures have shown the same problems over and over - communities need reliable mapping tools to connect them to the places they want to know about in a sustainable and safe way.

We can help.



Marc Rothmeyer

Marc is a visionary.

Founder Marc Rothmeyer is the fearless leader of the Dharma Maps team. With 30 years of industry experience and a talent for observation, he is uniquely able to deliver tech solutions that work and deliver results.

When Marc steps away from his role as a tech whiz, you can usually find him backpacking with his wife and 2 kids, volunteering at the local food bank, tending to his garden, or out on the bike.


Girijesh Kumar

Girijesh loves to code.

Girijesh Kumar brings over a decade of software development experience and a deep love of coding to the Dharma team. He ensures that the app software functions as intended and that it hits the mark every time.

When not deep in code, he volunteers with a number of organizations, loves watching cricket, and traveling. His favorite way to spend time on a trail is in the Khumbu Valley of Nepal.



Chris Chorney

Chris is an innovator.

Chris Chorney is our resident GIS, data processing, and software development guru. He has a knack for seeing the big picture, which is one reason he holds two patents in spatial processing.

In his off time, Chris loves to see the world- something that was cultivated when he spent two years in Papua New Guinea serving in the Peace Corps. And while he’s able to balance many things simultaneously, this paddle boarding newbie is still working on remaining upright on the water.



Ryan Graig

Ryan is obsessed with details.

A self-titled “map nerd” Ryan Graig is our go-to map master. With a background in trail building and trail system management, he’s used a few mapping apps in his day.  Ryan’s methodical approach to his work turns detailed- and sometimes monotonous- work into exciting challenges. 

Ryan loves mountaineering in the Cascade Mountains almost as much as building mapping tools. And when he’s able to break away, you can find him climbing, skiing, hiking, or playing board games with friends.



Shalu Chaudhary

Shalu is quality control.

As our team’s Project Manager, Shalu Chaudhary’s ability to manage a team keeps the Dharma crew and client projects moving in the right direction. She’s a critical component to keeping things on track and on budget. 

A real people person, Shalu loves making new friends, and learning about new technologies.



Brittany Keeling

Brittany makes good things happen.

As the “glue” of Dharma Maps, Brittany Keeling adeptly manages sales and operations for the company. A former business owner, Brittany perfected her talent for bringing innovative ideas to life and tracking every detail necessary to make it happen.

A native Texan, Brittany is just as comfortable on the back of a horse as she is behind a desk. But her favorite trail activity is hiking with her husband and fur baby.



MobCoder Inc.

Technology Partner

MobCoder is our tech partner for all of our app development. With an experienced team of developers, they make sure all of our apps and projects move forward without skipping a beat. 


Mat Lyons

Mat Lyons understands communities.

Mat is the executive director of TREAD, a nonprofit that brings motorized, non-motorized, water, snow and land stakeholders together in north central Washington. His leadership brings strategic direction and fosters on-the-ground relationships with land managers and user groups. He has been instrumental in envisioning how the app can be a tool for collective impact in outdoor recreation across the state of Washington and beyond.  Before leading the TREAD team, Mat has worked for the US Forest Service and the Bureau of Land Management. Mat was a public school administrator for 16 years, and has served on numerous outdoor recreation and community nonprofit Boards.