What is the All-In Trek?

A 12,500+ mile thru-hike

The North Country Trail (4,600 miles)
The Appalachian Trail (2,178 miles)
The Pacific Crest Trail (2,650 miles)
..and the Continental Divide Trail (3,100 miles)

..completed continuously, self supported, and back to back to back to back.

Breanna and Sophie (a 4-year old Husky-Rottweiler mix) will attempt to be the first female and first human-canine team to complete the All-In Trek starting September 2018. They hope to average 30-35 miles/day to complete the Trek in 13-14 months.

They will be hiking in support of impossible2Possible (i2P), a non-profit organization that provides free experiential learning programs for classrooms and students.

Read below to learn more about Breanna and Sophie, as well as each of the trails. Check out the impossible2Possible tab to learn more about i2P.

Target Start Date: 20th September 2018

TrailDirectionTrail Length (miles)Miles/Day TargetDays to HikeDate End
North Country TrailWest to East4600301532/20/2019
Appalachian TrailSouth to North220030735/4/2019
Pacific Crest TrailSouth to North265035767/19/2019
Continental DivideNorth to South3100358910/15/2019

Considerations taken when planning this route included weather and trail access; certain parks that the trails pass through close at certain times of

Samuel Gardner was the first to attempt the Trek in 2011, however James Lunning “Attrition” became the first to complete it in 2017
year. Having attended 4 years of school in the Upper Peninsula of Michigan and doing a lot of winter camping, the northern winters are familiar to Breanna; furthermore, Breanna and Sophie plan on being out of the Upper Peninsula of Michigan prior to December, and the PCT and CD can be downright dangerous and impassable/inaccessible in winter.

Breanna has backpacked a section of the AT in March and is familiar with the unfriendly conditions that can occur there too. Of course, summer monsoons/thunderstorms will be a concern on the CD. Coordinating this route is only best done in theory; if it is a heavy snow year on the PCT, plans might need to change.

Breanna not only needs to consider her safety and health, but that of Sophie’s as well. They will need to work as a team and Breanna will need to understand and respect Sophie’s needs on the trail. The above outline is an estimate; anything can happen on the trail and a strict timeline is not something to fall prey to on the Trek.

Breanna Cornell

Breanna Cornell, a Grand Rapids, Michigan native, grew up 20 minutes from the North Country Trail headquarters. She has always been in love with nature and wanted to bring that to the world through her art, experiences running, and education.

She began running at the age of 11 with her dad and completed her first marathon in 2010 at the age of 18, the Fallsburgh Marathon on the North Country Trail. She has since completed 7 marathons, 3 50-km races, 4 50-mile races, 3-100 km races, 4 100-mile races, and became the youngest female finisher of the Badwater Ultramarathon in 2015 at 22 years old (a 135-mile race through Death Valley in July).

Breanna has completed 2 double crossings of the Grand Canyon (Rim2Rim2Rim) and holds the female Fastest Known Time (FKT) for the Flagstaff Loop Trail. She uses her passion of running to try to help make a difference in other’s lives; in 2011, she ran from her home in Grand Rapids, Michigan to the Mackinaw Bridge to raise money for the Rowing Club at Michigan Technological University.

Breanna began following impossbile2Possible at the age of 16, after watching the movie “Running the Sahara.” It wasn’t until 2012 when she was able to participate in the program as a Youth Ambassador. Breanna traveled to Botswana with i2P and 6 other students; there, they ran 50-kms per day across the Kalahari Desert while educating about water use and biodiversity in the arid region (learn more about this expedition)

Breanna’s love for running grew from her struggles with recovering from Anorexia Nervosa through middle school and high school, and taught her that it wasn’t just about exercise, but about being in nature.

Through backpacking and in support of impossible2Possible, Breanna wants to bring that joy, what nature can teach us, and more to students and classrooms that can join on the trail and through documenting her experiences. She hopes to be able to embody impossible2Possible’s mission statement to “Educate, Inspire, and Empower.”

Breanna studied Environmental Engineering at Michigan Technological University and is currently working in the paper industry in Flagstaff, Arizona.


Sophie is a 4-year old Husky-Rottweiler mix that loves to run. Rescued in Michigan by Breanna’s parents, Breanna adopted Sophie upon her graduation from Michigan Technological University in 2014.

Sophie accompanies Breanna in almost all of her training and is the first dog to complete the 42-mile run of the Flagstaff Loop Trail in under 11 hours. Sophie was diagnosed with epilepsy in 2017, however her case is mild enough that medications are not required. Sophie uses the PetPace collar to track and monitor her health while running and at home. Sophie’s nicknames are “Princess Sophie” and “Sophie Scissor-Teeth.”

What is a “thru-hike?”
Thru-hiking, or through-hiking, is hiking a long-distance trail end-to-end within one hiking season.
The North Country Trail

The North Country National Scenic Trail (NCT) stretches 4,600 miles from Lake Sakakawea State Park in central North Dakota to Crown Point in eastern New York. The NCT passes through 7 states and follows many stretches of already established trail, but also includes a lot of road walks.

For a thru-hike to be recognized, it used to be required that the hiker walk the Mackinac Bridge connecting the upper and lower peninsula of Michigan. However, the Bridge was only open to pedestrians on Labor Day. This requirement was revoked in 2016 and hikers can now ride across the Mackinac Bridge to complete their hike.

The Appalachian Trail

The Appalachian National Scenic Trail (AT) is a 2,200 mile trail stretching from Springer Mountain in Georgia to Mount Katahdin in Maine.Appalatian Trail routeOf the four trails, it is the most popular with an estimated more than 2 million people to do at least one day-hike on the trail each year.

Pacific Crest Trail

The Pacific Crest National Scenic Trail (PCT) is a 2,659 mile trail that follows the Sierra Nevada and Cascade mountain ranges, starting at the US border with Mexico in California and ending on the edge of Manning Park in British Columbia.
Pacific Crest Trail routeThe PCT passes through 7 National Parks and elevations range from just above sea level to 13,153 feet.
Continental Divide Trail

The Continental Divide National Scenic Trail (CDT) runs 3,100 miles between Mexico and Canada, following the continental divide of the Americas along the Rocky Mountains range.
It passes through 5 states; in Montana, it crosses the Triple Divide Pass, which separates the Hudson Bay, Atlantic Ocean, and Pacific Ocean drainages. The trail is only about 70% complete, being a combination of dedicated trails and small roads.