We sub-contracted Southwest Trail Solutions to design 25 miles of trails for the Bureau of Land Management in Caliente, Nevada. The design team made quick work of the project, finishing in much less time than I anticipated and under budget. They used the landscape in an efficient and inspiring way and created a plan that matched the needs of the land manager. One of the most important outcomes of this project is the way STS balanced the needs of a sustainable and fun alignment with estimated budget amounts. Every trail construction project has a budget, especially those with this much mileage, and the trail design STS provided assures that the trail will be built efficiently and within a very reasonable project cost.


We later hired Southwest Trail Solutions to provide technical expertise for a technical, directional mountain bike trail. Evan, the Technical Trail Specialist, assisted us and land managers to design a trail that is unique to the area, utilizes natural rock features and gave us specific construction specifications for the project. Evan returned to the project three more times to provide support and guidance to our conservation corps crews who were building the trail. Evan is a great teacher and provided the exact insight we needed to succeed with the project.

Mark Loseth

National Trails Coordinator

American Conservation Experience


Mark Flint is an extremely skilled trail designer who is very knowledgeable about all aspects of the trail building process.  We are so happy that we chose him to work with us on our Bearfoot Trail project!

Mike Brandt

Project Manager,

Pine Strawberry Fuel Reduction, Inc.


I have worked with Mark Flint in his capacity as volunteer coordinator and Steering Committee Co-Chair on the Cienega Corridor/Las Colinas Construction projects for the Arizona Trail. I have also worked with Mark in the design of the trails for the 24 Hours in the Old Pueblo Race Course.

Mark has an extraordinary knack for mobilizing and energizing large groups of volunteers in the name of trail building. The high percentage of volunteers who come back is testimonial to his organizational and positive leadership abilities.

His ability to manage the trail building process, from recruiting and coordinating volunteer work events to laying out a highly-functional trail system that provides a quality experience for all trail users, is second to none. His insistence on “sustainability first” results in trails that maintain their character and integrity long into the future.

Mark displays an uncanny ability to design trails with a flow that all trail users enjoy. Aside from all the ‘happenings’ that take place at a mountain bike event, at the end of the day, participants pay to ride a great course. The 24 Hours in the Old Pueblo course, home to America’s largest 24 Hour mountain bike event and designed by Mark Flint, keeps people coming back year after year because they love the trails. The system’s high degree of sustainability means minimal maintenance is required – in most cases, just a little pruning.

Todd Sadow,


Epic Rides