Here is a thing that happens to almost every first-time thru-hiker: you spend many evenings planning your resupply strategy, color-code a spreadsheet, mail fifteen boxes to fifteen post offices, and then your appetite completely changes by week two and you're staring at a pile of food you no longer want to eat.
The question isn't whether to mail resupply boxes or buy in town. The answer is both. The real question is which foods are worth the effort to mail ahead, and which ones you can just grab off a shelf in Tehachapi.
Here's how we think about it.
Why Thru-Hikers Mail Resupply Boxes
Trail towns vary wildly. Some have full grocery stores. Some have a gas station, a bar, and a very optimistic hiker box. On stretches of the PCT, CDT, or AT where your resupply options can be genuinely limited, mailing food ahead isn't overthinking, it's just smart planning.
Mailing also means you control what you're eating. You pick the meals, pack the calories, and don't end up settling for whatever's been sitting on a shelf since 2019.
That said, mailing everything is its own problem (don’t forget that USPS only holds General Delivery packages for 30 days!). Plans shift. Your appetite shifts. A box you packed at home with the best intentions can feel like a punishment by the time you reach it. Mail what's hard to find. Buy the rest.
What's Worth Including in a Resupply Box
Freeze-Dried Backpacking Meals
Small trail towns rarely carry good freeze-dried meals. If they do, it's two options, both overpriced, one of which is already sold out. Mailing your dinners means you eat what you actually want to eat at the end of a long day, not whatever's left on the shelf in a town you're passing through at 4pm.
After 18 miles, dinner is the thing you've been thinking about for the last four of them. It's worth getting right.
Specific Snacks You've Already Tested
Everyone develops strong opinions about trail snacks around week two. Once you find something that works — a specific bar, an electrolyte mix, a nut butter that doesn't make you want to quit — mail it to yourself. Don't assume you'll find it in town.
Food for Dietary Restrictions
Vegetarian, gluten-free, dairy-free, small resupply towns are generally not set up for you. Mailing boxes to the trickier stretches takes a real variable off the table. One less thing to problem-solve when you're tired and hungry and clinging to that last bar of service.
Lightweight Backpacking Staples That Are Hard to Find Rurally
Ramen, dehydrated sides, specific high-calorie backpacking foods, these exist in outdoor stores and online, not always at a rural grocery store. If your meal plan depends on them, mail them.
What to Buy at Trail Town Resupply Stops
Basic Grocery Staples
Tortillas, peanut butter, ramen, tuna packets, oatmeal, chips, almost every trail town has these. They're cheaper to buy than ship, and you don't have to guess how much you'll want three weeks from now.
Fresh Food (Always Buy This in Town)
An avocado after four days of pouches and bars is not a small thing. Fruit, sandwich stuff, bakery items, a sit-down meal, this is what resupply stops are actually for. You can't mail this, and you wouldn't want to.
Pro tip: to take an avocado out on trail for a few days, buy a small Pringles can, eat all the Pringles, then poke a couple of holes in the lid. You’ve got yourself a protective carrying case for an avocado!
Whatever You're Suddenly Craving
You cannot predict, at mile 50, what you'll want at mile 1600. Foods you loved early on become repulsive. Buying in town keeps you flexible. Your trail palate is going to get weird, leave room for it.
The Resupply Strategy Most Thru-Hikers Actually Use
Mail boxes to the remote stretches: sections with genuinely bad resupply options, or where you want specific meals waiting. Buy in town everywhere else.
A simple breakdown:
- Mail to: remote PCT/CDT/AT sections, towns with notoriously poor resupply, anywhere you want specific meals guaranteed
- Buy in town: anywhere with a real grocery store, when your appetite has shifted, whenever you want fresh food or variety
It sounds obvious once you're out there. Getting there takes most people a few resupplies to figure out.
How Much Food to Pack in a Resupply Box
First-timer mistake: packing like you're going to be hungrier than you've ever been in your life. You end up carrying extra weight or leaving half of it in the hiker box feeling vaguely guilty.
A working range: 2,500 to 4,500 calories per day, depending on mileage and terrain. Start conservative. You can always buy more snacks in town, and you will.
Resupply Planning Doesn't Have to Be Perfect
It just has to work well enough that you're not dreading meals or bonking through a long stretch because you packed wrong.
Mail the things that matter: your dinners, your tested snacks, anything tied to a dietary need. Buy the rest in town. Eat the avocado.
Tomorrow's miles will sort themselves out.