Is this black walnut?

[BravO)))]

I am getting ready to build some storage buildings, and I am looking for rot resistant logs on the property that I could square up into some sleepers.  I have found a few 10 to 13 inch trees that had fallen for some time, as the bark had been rotting off, but looked solid. Cut them into sections, and the trees seem to be solid all the way down.  Considering the lack of rot to the heart wood, is this black walnut? Even the ends that were laying directly on dirt looked like this. 

[doc henderson]

I see saw dust and if that is a fresh cut, it looks solid, but not much like walnut.  maybe oak?  walnut should have a delineation between some heartwood and sapwood.  it has an off-center pith, is it a limb?  30 years old maybe.  Wait for the experts to arrive soon.  

[Wlmedley]

Don't think it's walnut but hard to say.Maybe locust for it to hold up that good.Chips when cutting locust are a yellow color.

[BravO)))]

I see saw dust and if that is a fresh cut, it looks solid, but not much like walnut.  maybe oak?  walnut should have a delineation between some heartwood and sapwood.  it has an off-center pith, is it a limb?  30 years old maybe.  Wait for the experts to arrive soon.   

It was off the base.  I suspect it had some lean in it from growing on side of a hill. It looks like some sapwood on the right side of the top pic.  Not sure. 

Don't think it's walnut but hard to say.Maybe locust for it to hold up that good.Chips when cutting locust are a yellow color.

I wouldn't be surprised if it was.  I had a 18" black locust that uprooted close by, but not sitting nearly as long.  Wooo living on hills!  I've got some rain coming in, but I should get to them some time this week.  When I do, I'll post some pics.  I've got some white oak to dig out before then.   

[B.C.C. Lapp]

I have an idea what it is but not certain sure.  But I will say it isn't black walnut.  I see some bark on the tree up a bit higher. A closer shot of that bark would seal the deal i think.

[Magicman]

It's Black Locust which is very rot resistant.  It's hard, yellow, and the dead giveaway is the very thin sapwood. 

[WLzM1A]

It's Black Locust which is very rot resistant.  It's hard, yellow, and the dead giveaway is the very thin sapwood. 

Agreed

[Ron Scott]

Black Locust

[doc henderson]

Well, can I change my answer to black locust?  

[BravO)))]

Milled them today.  Went to realign my idler last week, and one of the adjustment bolts sheared, resulting in me having to take part of the saw apart and pulling the tensioner assembly to get access for a screw extractor.  This Saturday, I had to play a show in New Orleans, and I didn't get to fix it until I got back yesterday.  Finally today, I got to get back at it.  It was black locust, which was the type of wood I was looking for.  I will say, black locust has very nice look.  I'm surprised it isn't used more in woodworking.

And where one problem ends, another begins.  When I was finishing my last cut on a black walnut log I had this afternoon, the riser cable snapped where it connects on the wench bar.  At least it isn't as soul crushing as the sheared bolt.