I know there's one on I-5 in southwest WA, but so far I haven't found it. I did find this website which might be helpful --> Vintage Part Source. I just discovered it myself, so can't attest to how current or valuable it is. It appears mainly car focused.
We used to have a junk yard that had at least 33 ADs. Of course, the part I needed was sometimes removed from all of them. But my '48 has about 25 parts from the place including an 848 head, 60 psi oil pressure gauge and Carter 2100S and Monojet carbs.
When the price of scrap steel peaked ($250/ton??) several years ago, the owner shut down the place and crushed all the cars for Chinese rebar. I hear he can't develop the site without cost-prohibitive cleanup.
The pictures show the ADs stacked 2-high and a crushed Ferd which suffered the same fate as all those ADs.
Last edited by Wally / Montana; 11/01/201910:17 PM.
34 Years. Now with a '61 261, 848 head, Rochester Monojet carb, SM420 4-speed, 4.10 rear, dual reservoir MC, Bendix up front, 235/85R16 tires, 12-volt w/alternator, electric wipers and a modern radio in the glove box.
L&L Classic Auto is a very large salvage yard about 2 miles north of Wendell, Idaho. There are probably a hundred AD trucks from complete project trucks to shells. Pretty spendy though.