Copyright © 2014 Trailwerx

I got my start on a paid trail crew in 1977 for the USFS on Alaska's Kenai Peninsula. After a 20 year stint as a wildland firefighter with the Alaska Division of Forestry, I started Wildfire Designs Bicycles in 1999 and became an early pioneer and manufacturer of FatBikes -- which are now popular worldwide.


As a part of my business, I became very involved in trail advocacy and founded Valley Mountain Bike Alliance (now Valley Mountain Bikers and Hikers) in 2000. This led to the development of Alaska's first singletrack network built specifically for mountain biking, the popular Mooseberry Mesa trail system, in 2003. 


From 2005 on, I worked for eight years as a trails specialist for Alaska State Parks and the Matanuska Susitna Borough. I founded Trailwerx in 2013 as my way to help Alaska realize its amazing potential as a premier destination for adventurous travelers yearning for world-class trails and incredible scenery.  In 2015, Trailwerx became a member of the Professional Trailbuilders Association.


Trails Training

  • Basic Sustainable Trails, International Mountain Bike Association,  2002
  • Alaska Recreation and Parks Association Statewide Conference, 2004, 2012
  • Advanced Sustainable Trails Training, Denali National Park, 2007
  • Rigging for Trail Work, Anchorage, AK, Lester Kenway, 2008
  • Rigging for Trail Work, Palmer, AK, Mike Shields, 2009, 2011
  • Streambank Restoration, Alaska Dept. of Fish and Game, Wasilla, AK, 2011​
  • Professional Trail Builders Association National Conference, Phoenix, AZ, 2013
  • American Trails Association National Conference, Albuquerque, NM, 2013
  • Alaska Trails Statewide Conference, Anchorange, AK 2014
  • Professional Trailbuilders Association National Conference, Portland, Or 2015
  • Alaska Trails Statewide Conference, AK  2012, 2013, 2014, 2015, 2016



My Credentials

The Trailwerx Pledge

I pledge to treat you, my customer, with respect and individual attention.


Trailwerx is a member of and supports the missions of the Professional Trailbuilders Association, American Trails, and Alaska Trails.

Copies of my book,
Trail Crew Field Reference,
can be requested from:
or by calling Matanuska Susitna Borough Parks and Outdoor Recreation at 907-745-2856


Mark Gronewald
Owner, Manager

My Mission

At Trailwerx, my mission is simple: to design and build fun, functional trails that provide excellent long term value to my customers. 
Contact me by email:


trailwerx@mtaonline.net


or call:  (907)-745-2453

Cell: (907)-355-2454

Trailwerx Services:


  • Free Initial Consultation and Estimate
  • Feasibility Analysis
  • Trails Planning
  • Trail Layout
  • Pre-Construction Staking
  • Corridor Clearing
  • Trail Construction: mechanized and by hand
  • Design and construction of bridges, puncheons, boardwalks and stairs
  • Stone Masonry: retaining walls, causeways, stairs, and tread armoring
  • Trails Mapping
  • Trail Signage: plans and installation
  • Stream Bank Restoration/Armored Crossings
  • Trail Crew Training, Mentoring, Supervision
  • Trail Maintenance: drainage restoration, tread repair, logging out, brushing, pruning 
  • Landscaping: Garden pools, waterfalls, stairs, decks, pathways
  • Snow trail packing and grooming

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Mark's Resume


  • Graduated Wasilla High School, Wasilla, Alaska 1977
  • University of Alaska, Fairbanks.   Natural Resources Curriculum 1978-1982
  • Trail Crewmember, USFS, Kenai Peninsula, AK 1977-1978
  • Wildland Firefighter, State of Alaska Division of Forestry 1978 - 1998. Fairbanks, Mat-Su. Certified as Crew Boss, Division Supervisor, Helitack Foreman, and Air Attack Supervisor. Extensive experience in crew management and remote site logistics.
  • Bicycle Manufacturer and shop owner, Wildfire Designs Bicycles, Palmer AK, 1999-2005
  • Recreation River Steward,Matanuska Susitna Borough, Deshka River, AK, 2005-2006
  • Trail Crew Foreman, Alaska State Parks, Hatcher Pass, AK, 2007-2011
  • Trails Program Coordinator, Matanuska Susitna Borough, Palmer, AK, 2011-2013.
  • Trails Specialist, Trailwerx, Palmer, AK 2013 - present.