3800 lb, maybe more...spruce wood is light, but the brush is pretty heavy. looks like .5-.75 cord of wood plus 6 yards of chips, so it could have weighed 4500 lb...
Here's a dead western white pine....filled the truck with chips, 17 yards, plus we saved some branch butts...so figure 9000 lb worth of chips, maybe less cause pine is light, and this one had lost most of its sap. The wood likely weighed another 10000 lb--we left a 12 foot habitat snag, the last cut was about 32 inches.