Buy a paper state atlas, and spend one evening marking it. Two routes out of your area, the places your household would meet, the hospitals, and the relatives' address — written on paper that works in a dead-battery, no-signal afternoon.
Phone navigation is genuinely excellent right up to the moment it depends on something that has failed. Paper depends on nothing.
What to mark, in order
- Two ways out, going different directions. One will be closed. The whole point of the second is that it doesn't share a bridge, a tunnel, or a canyon with the first.
- The meeting points. One close to home, one outside the neighborhood. Both need to be places a person could stand for an hour without explaining themselves.
- Hospitals and urgent care. You won't be composing a search query while somebody in the passenger seat needs help.
- The out-of-area contact's address, not just their phone number.
- Where the fuel is on each route, because the stations you know are the ones everyone else knows.
Use a pen that survives a wet glovebox, and write the phone numbers on the map itself. A map that sends you to an address is doing half its job; a map with the numbers on it is doing all of it.
The one real skill: the compass doesn't point north
A compass needle doesn't point at true north. Per NOAA's National Centers for Environmental Information, magnetic declination "is the angle between magnetic north and true north," it's "positive east of true north and negative when west," and its value "is needed to obtain true north." NOAA publishes the number for any location.
That angle is the difference between the grid printed on your map and the direction your needle is actually pointing. Over a short distance it hardly matters. Over ten miles on foot it puts you in the wrong valley.
The practical version takes two minutes
Look up your area's declination on NOAA's page, write it in the margin of the map, and note whether it's east or west. Then, per NOAA, you add the declination to a magnetic bearing to get a true one. Write down the correction you'll actually need, in plain words, rather than trusting yourself to reason it out later.
Paper maps from the USGS topographic program print declination on the sheet, which is one reason a real topo map beats a printout for anywhere you might travel on foot.
Belt and braces
Do the phone half too, tonight, because it costs nothing. Both major map apps let you download a region for offline use — the map data lives on the device and keeps working with no signal at all. Download your county and everywhere you would plausibly drive to. Then check it every few months, because offline areas quietly expire.
Offline maps and a paper atlas fail in different ways, which is exactly why having both is worth the drawer space.
Where this falls short
A map doesn't know what happened this morning. It can't tell you the bridge is out, the road is flooded, or the interstate is a parking lot — which is why a map is a companion to a radio rather than a replacement for one. A hand-crank NOAA radio is what tells you which of your two routes is the live one.
Declination also drifts. The value NOAA gives you this year isn't the value printed on a map from the nineties, so use the current number and note the date beside it.
And the honest one: a map you've never opened is a paperweight. Unfold it once at the kitchen table and trace both routes with a finger. That single rehearsal is most of the value — it's where you notice that route two crosses the same river as route one.
Where to go next
Paper is a theme, not a one-off. The plastic binder does the same job for documents, and the cash closet does it for money. When communications are the failure itself, what to do when the phones stop working is the page.