Your phone is a great map right up until it isn’t. The battery dies, the towers go down, or the road you always take is closed and the app keeps steering you back to it. A paper map of the roads around home still works when the screen goes dark.
Here’s which map your family needs, how to print it so the distances are right, and how to mark it so anyone in the house can use it.
At a Glance: USGS Topo Maps
- What it is: a map that shows the shape of the land. Hills, creeks, low spots and back roads, not just highways.
- Do you need one? For getting home by car, a road atlas does most of the job. Add a topo map if you might walk, or if you live near creeks or hills.
- Getting one: download the U.S. Geological Survey (USGS) map of your area tonight, or print one centered on your home. Neither costs anything.
- Print it right: pick Actual Size, not Fit to Page. Then 1 inch on the map equals 2,000 feet on the ground.
- Keep it dry: put a plain print in a gallon zip bag, or print on waterproof paper.
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What Is a Topo Map, and Why Not Just Use Your Phone?
A topo map (short for topographic) is a paper map that shows how the land rises and falls.
Thin brown lines trace the hills. Blue lines show creeks. Small black lines and dashes show the back roads and trails a road map leaves off.
That matters on the day you can’t take your normal way home. A road map tells you which roads exist. A topo map tells you which of them climbs a steep hill, which one dips down to a creek, and which one floods first in a hard rain.
So why not just download offline maps? You should.
Offline maps fix the signal problem, because your phone’s GPS works without a cell signal. They don’t fix a dead battery, a cracked screen, or a family member who needs the route while you have the phone.
When the phones went quiet
After Hurricane Helene hit western North Carolina in 2024, Asheville had no cell service and more than 400 closed roads. People couldn’t call family, and the app’s usual route was often the one that was gone.
A paper map doesn’t fix a washed-out bridge. It does show you the other ways around it.
Do You Need a Topo Map, or Is a Road Map Enough?
For most families, a road map is the first paper map to own. If your plan is to drive home or drive out, an atlas in the glovebox covers it. A topo map earns its place when you might be on foot, or when the land around you can cut a road off.
Which paper map does what
| Map | Best for | Where to get it |
|---|---|---|
| State road atlas | Driving home or out of the area when the phone is down | A store or Amazon. Keep one in each car. |
| Local street map | Side streets around home, work and school | Your county or city office, or a free printout |
| Topo map | Walking routes, creek crossings, low roads that flood, hills | Free from the USGS or CalTopo. Steps below. |
Start with the road atlas if you only buy one. Add the topo map for the few miles around home.
If the cars don’t have an atlas yet, that’s the easy fix.
Rand McNally’s large-scale edition prints the state pages bigger than a standard atlas, so the type is easier to read in a moving car. It won’t show the land itself, though. That’s still the topo map’s job.
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RELATED: 9 ways to navigate without GPS
How to Get a Topo Map of Your Area Tonight
There are 3 ways to get one. Most people should start with the first or second one tonight.
1. The standard USGS map (instant). Open The National Map Downloader, type your address, and download the US Topo map (the USGS calls each sheet a “quad”) that covers your home. It’s a PDF.
The catch: each sheet covers a fixed square of land, so your house may sit near an edge.
2. A map centered on your home (instant). CalTopo is a free mapping website. Search your address, set the base layer to topo and the scale to 1:24,000, then drag the print box so home sits in the middle.
Free accounts can print up to 5 letter-size pages. That’s enough for home and your route to work.
3. A custom USGS map (by email). The USGS topoBuilder tool builds a map around any spot you pick. You choose the area, enter your email, and the map arrives as a PDF, usually within 5 days.
Use it for a bigger area than CalTopo’s free pages cover.
Do this before you need it
None of these work once the power and internet are out. Download or print tonight, while it takes 10 minutes. The USGS also sells printed copies if you don’t want to print at home.
How to Print a Topo Map at True Scale
Here’s where most home prints go wrong. Your printer’s default is Fit to Page. It shrinks the map a little, and then every distance you measure on it is off.
- Pick Actual Size or 100%. Turn off any fit or shrink option in the print box.
- Check it with a ruler. Find the scale bar in the margin. On a 1:24,000 map, 1 inch should cover 2,000 feet, and about 2.64 inches should cover 1 mile.
- Expect more than one page. A full USGS sheet is poster size. At 100% it prints on 9 letter-size pages you tape together. A print shop can run it as one big sheet instead.
- Print only what you need. Home, plus the pages along your route out, matter most.
Plain paper is fine. Slide the sheets into a gallon zip bag or a sheet protector you already own, and you’re done.
If you want something sturdier than a zip bag, a clear waterproof map pouch (paid link) holds a folded sheet, and you can read it right through the plastic.
If the map will live in a car or a bag for years, waterproof paper holds up better.
Check your printer first. Some waterproof paper is made for inkjet printers. The paper below works in laser printers and copiers but not inkjets, because inkjet ink won’t stick to it.
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The 200-sheet pack is more than one family needs for maps, so use the rest for your written plan and phone list. Inkjet owners can stick with plain paper and the pouch.
How to Read a Topo Map in 5 Minutes
The brown lines are contour lines. Each one connects points at the same height. The margin tells you how many feet apart they are.
- Lines close together mean steep. Bunched lines are a hill you’ll climb slowly. Wide gaps are flat ground.
- Small rings are high points. A ring inside a ring inside a ring is a hilltop.
- V’s point upstream. Where contour lines cross a creek, they bend into a V, and the tip points uphill.
- Solid blue runs all year. Dashed blue lines are creeks that can run dry.
- Use the grid. USGS maps print map coordinates in the margins, so you can tell a rescuer exactly where you are.
A map is half the kit. A simple baseplate compass lets you turn the map so it matches the ground in front of you.
A baseplate compass has a clear base, so you can read the map right through it while you turn it. This one is plain and simple, and it won’t do much until you’ve practiced with it a few times.
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Our guide to using a compass with a map walks through it step by step.
Old maps for old roads
The USGS keeps older maps on topoView, going back to 1884. They can show logging roads and trails newer maps dropped.
Treat them as leads, not facts. An old road may be gone, gated or on private land (and “private” can mean a locked gate you only find at 10 at night), so check it in daylight first.
Mark Up Your Map So Your Family Can Use It
A clean map is a reference. A marked map is a plan. Spend 20 minutes with a pencil and 2 highlighters.
- Circle the places that matter. Home, work, school, and one meeting spot outside your neighborhood where everyone goes if you can’t get home.
- Draw 3 routes home. Your usual road plus 2 backups that don’t share the same bridge. Use a different color for each.
- Flag the low spots. Mark creek crossings and low roads that flood in a hard rain.
- Write the date. Put the print date in a corner so you know when to refresh it.
Then hand the map to someone else in the house and ask them to trace the second route home. If they can’t, the map isn’t done yet. Our family evacuation drill shows how to practice it.
Common Mistakes With Paper Maps
- Counting on offline maps alone. They work without a signal, but not without a battery. Keep the paper copy too.
- Printing at Fit to Page. The map shrinks and every distance is off. Print at Actual Size and check the scale bar with a ruler.
- Waiting until the storm. The emailed USGS map can take days. Download or print the instant version tonight.
- Putting laser-only waterproof paper in an inkjet. The ink won’t dry on it and smears off. Buy inkjet paper for an inkjet printer.
- Mapping only home. Print the route to work, school and your meeting spot too.
- Trusting a 1950s road. Old maps show roads that may be overgrown or private now. Check before you count on one.
Frequently asked questions
Yes. USGS topo maps download free from The National Map Downloader, and custom maps from topoBuilder are free too. You only pay if you want a printed copy made for you.
Yes, as a backup. Offline maps work without a cell signal, but they stop when the battery dies or the phone breaks. A paper map also lets someone else in the family follow the route.
A road map shows roads and towns. A topo map also shows the shape of the land: hills, creeks, low spots and small back roads. Use a road map to drive and a topo map when terrain matters.
Print at Actual Size or 100%, never Fit to Page. Then lay a ruler on the scale bar. On a 1:24,000 map, 1 inch should cover 2,000 feet.
Usually less than 5 days. The map is built when you order it and sent to your email. If you need one tonight, download the standard map or print from CalTopo instead.
Do one thing today
Tonight, open CalTopo or The National Map Downloader, find your home, and print the page it sits on at Actual Size. Put it in a zip bag in the glovebox. Then mark your usual route home and one backup.
Quick poll: If your phone died on the drive home, could you still get there?
Which road would you lose first in a storm where you live? Tell us in the comments.
