I'd like to suggest a way of disposing of brush and downed timber that (A) Reduce or elimintes danger of wildfire (B) alllows doing it on your scedule with less regard for burn bans (C) dramatically improves your soil for years to come. (D) Eliminate need for irrigation of deep rooted plants with as little as 20" annual rain or cut necessary irrigation dramatically for plants requiring alot of moisture. Bury it with soil and let it rot. Using land similar pictured in post 5 here's what I do. Use pictured tractor to pile brush in those small ravines and shallow creases in land. Due to amount of wood on ground in this case it would help to reduce it somewhat. Partially burn brush then cover in soil after small twiggs and limbs have burnt and flame dies enough to drive close with tractor. The partly burned wood is known as biochar,price it anywhere gardening supplies are sold and its value becomes apparent. Variables can change results but you can expect the 3' above grade mound to settle by 50% withing 18-24 months and be 6"-12" above grade withing 5 years. Mounds can be seeded as built then desirable plants,trees and grass after a few months. On a smaller plot I might dig a trench,fill it with brush then cover it with dirt as additional trench is being dug for more brush. I urge you to bury some rotten logs or brush to see for yourself even it it's only 15-20 sq ft area for a flower bed.