Anniversary cake for the 70th anniversary of the establishment of the HJ Andrews Experimental Forest

David Paul Bayles (right) shares his photography of the Andrews Forest with HJA Day attendees

David Paul Bayles (left) shares his photography of the Andrews Forest with HJA Day attendees

Graduate student Sarah Kelly shares her work on the Discovery Trail at HJA Day 2018.

Marie Tosa (OSU graduate student), shares information on mammals and birds

Marie Tosa (OSU graduate student) (left), and Brooke Penaluna (USFS PNW) (right), share information on "Fur and Fins": mammals and fish

An HJA Day attendee inspects a sculpin fish up close, during the "Fur and Fins" morning presentation station

HJA Day attendees look at mammal skulls during the "Fur and Fins" morning presentation station

HJA Day attendees look at mammal skeletons during the "Fur and Fins" morning presentation station

HJA Day attendees look at mammal skeletons during the "Fur and Fins" morning presentation station

HJA Day attendees look at mammal skeletons during the "Fur and Fins" morning presentation station

Marie Tosa (OSU graduate student), shares information on mammals and birds

HJA Day attendees look over historical documents about the HJ Andrews Experimental Forest

David Bell (USFS PNW) holds a tree corer, an instrument used to take cores from trees. Tree cores can show scientists growth patterns of a tree over time.

HJA Day attendees look at LIDAR images (top) and an older technology, landsat images (right)

David Bell (USFS PNW) talks about remote sensing and what scientists can learn about looking at changes over the long term

David Shaw (OSU, center) shows attendees a Western hemlock branch with dwarf mistletoe fruiting bodies

David Shaw (OSU, center) points out a Western hemlock tree infested with dwarf mistletoe.

Zheng Dong (OSU) shares information on modeling and the value of long-term data in trying to see ahead

Zheng Dong (OSU, far left) and David Bell (USFS PNW, left) discuss how climate change might affect forests in the Pacific Northwest

Sam Schmieding (OSU) (left) shares his curated collection of documents about Horace J. Andrews, after whom the HJ Andrews Experimental Forest was named

Paul Anderson, USFS PNW, provides a history of the HJ Andrews Experimental Forest and this year's 70th anniversary of its establishment

Michael Paul Nelson, OSU, shares information on the Long-Term Ecological Research (LTER) program and the partnership with Oregon State University

Steve Wondzell (USFS PNW) talks about rainfall, runoff, and hydrology

Julia Jones (OSU) talks about long-term trends

Julia Jones (OSU) (left) and Steve Wondzell (USFS PNW) (right) hold up sticks showing the heights of highest, average, and lowest rainfall on record at the Andrews Forest

Darren Cross, USFS WNF, gives an introduction to the Willamette National Forest and connections with Andrews Forest and management

Mark Schulze, OSU, shares safety information and underlines the value of modern-day hard hats

Suzanne Remillard introduces "Tools: Then and Now" which covers wireless technology, sampling hardware, and drones.

Don Henshaw shares information on how our tools have changed over time, from paper to digital

Don Henshaw shares information on how our tools have changed over time, and he displays a photo of himself working many years prior

Adam Kennedy talks about the wireless sensor network across the Andrews Forest and how it has evolved with changing technologies

Al Levno, retired USFS, stands next to a stream guage like the ones he monitored in streams at the Andrews Forest in the 1960s and 1970s

Al Levno, retired USFS (left), and Greg Downing, USFS (right), stand next to a precip sampling device. Greg collects samples at the Andrews Forest now; Al used to collect the same types of samples several decades ago.