We have a place that takes clean, wood only (no leaves, roots, moss), no palm (too fiborous) or citrus (canker risk) loads to chip and dye a deep red for mulch. They used to take stuff with leaves, but had a fire (that was blamed on sparks from a RR car flying into a pile!) in our drought stricken area. These newer conditions are hard to meet most of the time! It is cheaper to dump there when you can though.
Our local landfill backs up to a commercial, independant plant that tub grinds and mixes shredded tires (for hotter burn?) for power. i don't beleive they bury any tree stuff anymore, though the cost of dumping hasn't decreased (.01 a pound; $20/ton)!
One local tree company has a small lumber mill for making pallets, that used to be owned independantly; and we would try to take clean, straight pine there cut to 54". Kinda became a hassle, now that it is bought out the tree company just handles there own waste there anyways.
We take clean, low knot, min. 12" diameter at small end 17'+ pine with no borers (which is a reason a lot of pines are removed locally) to another location (private mill)when possible. All conditions must be met, dump for free; we load on an eqipment trailer using a truck pulling a parbuckle 2/1 line to load the lengths. We lay the parbuckle line across 2 towing hooks on the truck, allowing it to pull to a wider/balanced focal point and self adjust slack side to side. This is more local to most of our jobs than other options. We use a Sherrill #16061 Blue Ox Log Hauler to move the med. diameter lengths long ways out gates and to the trailer fairly easily, very simple and intelligent cart!
