Before a thru-hike, resupply planning sounds like the kind of thing that requires a perfect spreadsheet. Exact calories per day. Boxes mailed to every stop. Every meal accounted for from Georgia to Maine or Mexico to Canada.
It doesn't. Thousands of hikers figure this out every year with a phone, a grocery store, and whatever's left in the hiker box.
A good thru-hike resupply plan isn't about predicting everything. It's about building a simple system that still works when your pace changes, your appetite shifts, and the town you were counting on turns out to have one gas station and a dream.
Here's how to build one.
Step 1: Learn Your Trail's Resupply Rhythm
Most long trails naturally break into 3 to 6 day food carries, meaning you're hitting a resupply point roughly every 50 to 120 miles, depending on terrain and town access.
The three big trails each have their own rhythm:
- Appalachian Trail: frequent towns, shorter carries, more flexibility
- Pacific Crest Trail: moderate carries with some longer remote sections
- Continental Divide Trail: longer carries, more remote, more planning required
Start by identifying the logical resupply towns along your route. FarOut guides, trail association websites, and thru-hiker blogs are all solid starting points. You don't need to finalize every stop — just get a rough map of where resupply typically happens.
Step 2: Figure Out How Many Days of Food to Carry
This is simpler than it sounds. Estimate your daily mileage, divide the distance between towns by that number, and add a buffer day. That's how many days of food you're carrying.
Example: 90 miles between towns, hiking roughly 20 miles a day. That's 4.5 days — so you carry 5.
Your first estimate doesn't have to be exact. Your pace will settle in after the first week or two, and you'll recalibrate from there. The buffer day exists precisely because nothing goes exactly to plan.
Step 3: Decide Where to Mail Resupply Boxes
Not every town needs a box. Most experienced hikers mail ahead only where it actually makes sense, like remote sections, towns with no real grocery store, or anywhere dietary restrictions make shopping a gamble.
Places That Usually Warrant a Mailed Box
- Kennedy Meadows and Stehekin on the PCT
- Pie Town and other small CDT stops
- Any town where the "grocery store" is a gas station with a hot dog roller
Everywhere else, buying in town is usually easier, cheaper, and more flexible. Mailing too many boxes creates its own problems — mainly that your appetite changes and you're now committed to eating food you packed two months ago.
Step 4: Build a Simple Daily Food System
Instead of rebuilding your food plan from scratch every resupply, create a repeatable daily structure. Once you know what a typical food day looks like, you just multiply it by however many days you're carrying.
Most hikers land on something like:
- Breakfast: instant oatmeal, coffee, a bar
- Day snacks: bars, trail mix, chips, nut butter, candy, whatever keeps you moving
- Lunch: tortillas with tuna, peanut butter, or whatever cheese survived the morning
- Dinner: a freeze-dried meal, maybe instant ramen or noodles on the side
It doesn't have to be more complicated than that. The system is the point, not the specific foods.
Step 5: Don't Lock In Too Many Boxes Too Early
This is the most common first-timer mistake. You mail fifteen boxes before you leave, your appetite transforms completely around week three, and now you're contractually obligated to eat foods that make you want to lie down in the trail and stay there.
A better approach: mail a few early boxes to the sections that genuinely need them, then reassess. Have someone at home who can send boxes forward. Or ship from towns as you go, once you actually know what you want to eat.
Flexibility isn't a backup plan. It's the plan.
Step 6: Leave Room for the Unexpected Good Stuff
Trail towns have a way of delivering exactly what you didn't know you needed. A bakery that opens at 7am. A diner with a plate of eggs that costs eight dollars and tastes like the best thing you've ever eaten. Fresh fruit at a hostel. A random snack from a gas station that becomes your new trail staple for the next 400 miles.
A resupply plan that's too rigid leaves no room for any of that. And some of the best moments on a long trail happen when the plan goes sideways in the right direction.
The Short Version
If you're feeling overwhelmed, here it is in five lines:
- Map out your resupply towns
- Estimate days of food between each one
- Mail boxes only where stores are weak
- Buy everything else in town
- Adjust as you go
That's the whole system.
One Last Thing: The Food Actually Matters
You're going to eat thousands of calories a day on a long trail. When the weather turns bad or the miles get hard, dinner is often the thing that holds the day together.
So build a plan that makes sure you're carrying meals you actually want to eat, not just meals that fit in a box. After 20 miles, food is morale. Treat it that way.