You can use satisfactory calculator to see them in the map

You can also upload your save file and see which ones you have and the ones you need to collect

https://satisfactory-calculator.com/

Originalmente postado por Grandpa:

Is there an easier way to find them, like the crash site maps, earlier in the game while still without flight? Major pain without advanced/MOD settings.

If you have a worldwide power network, you can set up radar towers

The in-game way is a mix of radar towers and object sensor. If you simply must have them early game or otherwise you'd probably just need to look up a map of them.