Around here Winter causes trees, and major tree limbs, to fall. This creates opportunities for urban salvage of tree material: wood, bark, needles, cones, etcetera.

What Winter salvage opportunities come your way?

Down here we have lots of eucalyptus trees. They will shed major branches at random throughout the year, no wind or weather necessary. I was just looking at some nice dry logs along my local bike trail a few minutes ago......

I thought eucalyptus burns like oily rags Is it any good as firewood or just as starter?

Good question. I have never put any in my fireplace, and I have wondered if eucalyptus bark would make a tinder as good as my revered Utah juniper. Given their reputation, I will start with small logs. I don't believe they will burn for a long time..

The word I get from fire fighters who have been on a line with eucs is that they behave more like powder kegs than anything else, but I have actually not had that pleasure, either. Came close once with a campfire that got away in a eucalyptus grove, but we got it out before it torched any trees.

That's kind of a funny thing when camping with Scouts. In the spring there is usually a lot of winter-dropped dry wood on, or better yet, near the ground, but by the end of the fall the woods are usually picked clean of 'natural' firewood.

In the spring the boys love going out to look for firewood and usually have some great hauls, but by the end of fall it is really a struggle for them.

BTW, these days many of the parks & campgrounds my son's troop camps at are (1) asking us to leave fallen wood in place - to allow soil to continue to form naturally in wooded areas, and (2) asking us to purchase cut firewood locally to prevent transport of wood-borne pests (moths, beetles, ...). Having to buy local firewood means we have to do more pre-planning, it costs a lot more, and it means that the boys spend more time having to split some hefty and sometimes pretty knotty wood that is pretty tough to do even with a full size axe. They should be using a maul, but many of the Scouts are just too small to handle a maul safely - even the smaller mauls.

Eucalyptus I have burned made for hot fire and coals but had a tendency to minor explosions that were worrying.

Long-needled pine [sugar pine I think] branches fell on the roadway outside the chain-link fence of a local golf course. Pulling them out of the path of cars, I harvested a paper grocery bag of thickly-needled branch tips. Basketry and weaving experiments will follow.

I used to be able to get a lot of wood from the city.

They are always cutting trees and would get large trunks and branches they couldn't feed through a chipper or sell because all the mills were too afraid of nails in the wood.
Some of the tree trunks were just way to big around for a commercial mill too.
You might not even need to go pick it up yourself, but I had to go to a yard they used for dumping them in. I had to sign an insurance waiver to be allowed to cut it up and load it.

I found it was a bit hard on saw chains, but with a bit of caution it was not as bad as you might expect.

It might be worth calling whoever deals with parks or maintenance in your nearest city.