Our Partners

Acadia Mountain Guides Climbing School has established relationships with industry leaders in Guiding Standards, Avalanche Science, and Wilderness Medicine to insure that all our courses are consistently cutting edge.
AIARE was established to raise the bar on Avalanche Education in the United States. The AIARE three part series of Avalanche Awareness courses has been developed by North America's leading Avalanche experts. School owner Jon Tierney is an AIARE approved Level I and Level II Instructor and Acadia Mountain Guides Climbing School is the only Provider of the Level III course east of the Rockies.

The AMGA inspires an exceptional client experience as a premier source for training, credentials, resource stewardship and services for professional mountain guides in the United States.

For over 30 years, the AMGA has been dedicated to supporting the guiding community through excellence in education, standards and certification to enhance the quality of services provided to the public, while serving as a resource for accessing and protecting the natural environment.

Acadia Mountain Guides Climbing School owner, Jon Tierney was intimately involved in the leadership and growth of the AMGA for well over fifteen years. During that time he served six years on the AMGA Board of Directors, chaired the accreditation committee for several years, and served as an instructor and examiner. Most significantly, Jon proposed and spearheaded the development the climbing instructor program. He served as the coordinator of the program for seven years as well as the primary trainer of course instructors for ten years. In 2004, the AMGA honored Jon with a lifetime achievement award for his contributions to both the AMGA education and accreditation programs.

Many Acadia Mountain Guides multi-pitch guides have been through AMGA educational courses. Acadia Mountain Guides was the first climbing school in Maine to achieve accreditation and is the only school in Maine to remain continuously accredited by the AMGA since opening in 1994. AMGCS has employed full-time AMGA certified guides and instructors every year since 1994, approximately 15 years longer than any other local climbing schools.


The PCIA is a newly formed non-profit organization focused on providing quality education and instruction for new and existing climbing instructors who primarily teach basic skills and/or facilitate climbing experiences. In addition, the PCIA Accreditation Program helps assure land managers, insurance providers and the public that employees of PCIA accredited schools have been peer reviewed and have demonstrated core competencies appropriate to the climbing venue. Working in concert with organizations such as the AMGA, the PCIA seeks to cultivate best practices aimed at improving the quality and delivery of climbing instruction.

Northern Outdoors is Maine's premier four season resort. During the summer, Northern Outdoors provides the most exciting whitewater rafting vacations in New England ...... from tranquil float trips to white knuckle high adventure. The magnificent beauty and excitement of Maine's Kennebec, Penobscot and Dead Rivers can be enjoyed by most anyone, from families to the most seasoned whitewater veterans.


Wilderness Medical Associates International leads the international community in developing and offering Medical Training in the Wilderness Environment. School owner Jon Tierney has been a paramedic and lead instructor for WMA since the 80's. All of the Acadia Mountain Guides are certified Wilderness First Responders and many are Wilderness EMTs. Acadia Mountain Guides Climbing School offers WMA courses internationally. Our clients include Search and Rescue Teams, Outdoor Shools, the United States Military, the Venezeulan National Mountain Rescue Team, and other mountain professionals and outdoor enthusiasts around the world.


A History of
Leading the way...

Acadia Mountain Guides Climbing School is the preeminent leader in climbing instruction and guiding in Acadia and across Maine. We specialize in designing customized experiences or training for you, your family or your group.

Directed by internationally recognized IFMGA guide Jon Tierney who has been climbing in Acadia since 1982. Jon has over 30 years of local and worldwide experience. The IFMGA requires full AMGA certification as a rock, alpine and ski mountaineering guide.

All AMGCS instructors are certified by either the AMGA or the PCIA and all guides have been trained or certified by the AMGA.

• Since 1994 •
AMGCS is one of 30 AMGA accredited programs in the US and was one of the earliest to achieve accreditation.

AMGCS is the only climbing school in Maine to remain continuously accredited by the AMGA for eighteen years - several years longer than any other local service. We have had one or more full time AMGA certified rock instructors or rock guides on staff each year since 1994 - sixteen years more than any other local school.

• Since 2007 •
AMGCS has the distinction of also being accredited to the highest standards of the Professional Climbing Instructors Association. The PCIA requires all staff to be individually trained and certified.

Experience the difference.
Reach your peak with Acadia Mountain Guides Climbing School.



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