The best way is using your Heroes to get the outside Collectors and Mines easily and after a short regeneration time you will be able to continue raiding as usual. If you’re not BARCHing right now, you might have totally different troops – and just farming abandoned bases is not a good idea (read more about that in the next chapter). The easiest answer is sniping the Mines and Collectors with Archers, but in the end, you will need to use the troops you have in your pocket. If you’re raiding TH10 and TH11 bases, you also might want to take a look at the Inferno Towers. I posted a complete guide about scouting loot here, worth a read:

The Mines & Collectors can be spotted very easily: These four indicators will show you that this is an abandoned base, or let’s just call it a lucky punch! There are several things you should look out for that indicate whether a base is dead or not: It is stated that a base that hasn’t been played for more than 57 hours is flagged abandoned in the system, but that’s something we will look at more closely in the last part about the matchup algorithm.

Collectors & Mines still generate loot and are filled.