NEW DATE: THURSDAY, FEBRUARY 13 This winter excursion, led by former Renfrew Institute staff member and naturalist, Lori Schlosser, is for participants aged 15 and up. The activity is free (donations accepted), but registration is required and limited to 60. Spaces fill up quickly for this popular event, so anyone wishing to join the walk […]

Dr. Lawrence Marschall, Professor of Physics Emeritus, Gettysburg College, discusses what astronomical conditions can affect the climate of a planet. He asks, “How do we know that current climate change is not caused by astronomical changes?” Come to this free program to learn more about this “hot topic.” Night sky viewing after the program, weather […]

Presented by Roger Swartz, Author, Educator & Historian and Deborah ‘Turtle’ Swartz, Native American Living Historian & Authority An illustrated overview of the history and way of life of Pennsylvania’s Native Americans will be presented. Covering the period from circa 1525 through 1800, the Swartzes will talk about the major groups of Native Americans living […]

The safety and health of our community are of utmost importance to us. This program has been postponed. The new date is yet to be determined and will be posted here when confirmed.  Presented by Andre Weltman, Chairman, Friends of Pine Grove Furnace State Park. Andre Weltman will discuss the impact of the iron industry—in […]

To celebrate 25 years of the Institute at Renfrew’s spring kite fly event, kite masters George and Sam Adams will present a program on kite power. Learn how kites have […]

Raised hands with trash and recycle sign, vector illustration Co-sponsored by Antietam Watershed Association and The Institute at Renfrew. Still confused about what’s recyclable and what isn’t? Local experts address […]