A lot of variables go into it. Species, size, and grade all play a role. The price the mills pay for logs can go up and down like a yo-yo. A load of big 40 ft. Doug Fir logs with very little defect might pay quite a bit...a load of good sized clear grained pine, Ponderosa or Sugar, might pay even more...a load of crooked white fir might not pay enough to bother with. But it all has to go.
Log prices, as far as what the mill is paying for outside wood, or what the mill is paying to have their own timber logged, are often closely guarded secrets.
LOL...in other words, I can tell you what I made on a load last week but I might not be able to tell you what I'll make on a load tomorrow.
