It takes a lot of energy and muscle to fell trees, remove branches, load logs, and saw them into lumber. But mechanized timber harvesting equipment makes light work of these tasks with the strength and control of hydraulic fluid power. Compact cartridge valves can control multiple functions of a single machine for felling, branch removal, and trimming. Electronic controls can automate repetitive or sequential motions. And forest locations can be remote, so greater use of telematics for troubleshooting is on the horizon.