Water trickles in a stream and redwoods tower overhead in Jackson Demonstration State Forest near Fort Bragg in Northern California. Joe Wagenbrenner, a research hydrologist with the U. S. Forest Service’s Pacific Southwest Research Station, shares the story behind the scenery. Water trickles in a stream and redwoods tower overhead in Jackson Demonstration State Forest near Fort Bragg in Northern California. Joe Wagenbrenner, a research hydrologist with the U. S. Forest Service’s Pacific Southwest Research Station, shares the story behind the scenery. Ecology Phys.org – latest science and technology news stories