I have some friends who just purchased a wooded property. It's about 60 acres. Is there a practical wireless solar powered camera scheme?

1) Is there an ISP on site? Any structure with power?
2) Or are we talking about a completely undeveloped plot of land? No utilities available at all.

If the answer is the 2nd, then is their 4G/5G signal available on the land?
If no one had even thought to check that, then that needs to be discovered now. Because if they don't even have 4G/5G available, then they are screwed.
Note: Preferably a strong 4G/5G signal. Because a weak signal causes a lot more power draw to connect to.

Another option: You can do a self-contained system, that they have to visit the site locally to pull footage for.
That would be a PITA. And still doesn't allow them to 'check' on things unless they go to the property.

[edit]: Oh and what's the budget? How many cameras?
Some vendors have kits with everything you need (4K cam, 80watt solar panel, 30Wh battery, SIM card, enclosure & pole, mounting hardware) for less than $2K

I haven’t been on the property yet, their house is on a corner of the property. Cell service and Internet connectivity is available at the house. Likely, the whole property is covered by 4G/5G, but I don’t know about signal strength. The goal is to log hunters, dumpers, campers, parties, etc.

A site survey will need to be done, so more info can be gathered.

If for example, the only ways onto the property are at that corner and no other access is possible. Then a couple of solar WiFi cameras at the entrance could work, with a directional WAP from their house.

If they are needing cameras spread out across the 60 acres however, that would get very expensive as mentioned above.
A more economical approach might be to just use those camo trail cameras. That's what most of the hunters and large property owners use down here to keep an eye on things =
[Link: amazon.com]
Note: I'm not endorsing that camera in the link, it's just the 1st one that came up in the search.

Are they near cellular service and will they have internet? Do they want to set up their own WiFi camera system that ties into their own network, with access from outside?

Here's one list- hunting cameras aren't terribly expensive. I saw some cameras from Cuddleback over the weekend that sell for $179 each, Cabela's has one with a cellular plan of $10/month- that model sells for $199.

[Link: eatelkmeat.com]

Thanks.

I'll be onsite over Thanksgiving. I have a Browning DARK OPS that is several years old. It's not online, battery operated, records 20 second snips on an SD card. It works well. I've logged squirrels and cats in the attic, cats, groundhogs, raccoons, and possums in the city, and the usual deer, squirrels, foxes, groundhogs, crows, in the suburbs. I'm not sure about ultimate battery life, but it is very good. For a property this size I think multiple cellular reporting units would be the best approach -- if there is adequate cell coverage.

Currently not a practical home owner product, but a hint about the future:
[Link: hack-the-planet.io]

Does this property have any fire breaks or fire roads? If so in either case, the Ubiquity Micro dishes (don't remember the actual model) could extend the range greatly and allow the closest to the house to use the router for remote access, as long as they don't shut off the network when they're gone. If they do shut it down, the cellular cameras would be the best choice, IMO.

Fortunately, the house is their permanent residence. I have not yet been on the property. My understanding is that there is the beginnings of an access road through the property. The previous owner was planning to divide and develop the property. My friends want to preserve the property as a wildlife refuge.

Micro dishes might be practical.

Reolink sells a camera with cell service. You can attach a solar panel on it. I set a few up on a job site and the battery stayed charged for a year before it needed to be replaced. Used T-Mobile SIM card at $10 a month per camera.

[Link: m.reolink.com]

Interesting, very practical if a few cameras could keep tabs on access avenues.