illustrated graphic of mastodon silhouette with skeleton and log hut.

Valley Forge Fossil Day

Valley Forge National Historical Park

Special Event
  • Oct 17, 2026 at 12:00 PM
  • Free

Valley Forge Fossil Day

When: Saturday, October 17, 2026 between 12 noon and 4 pm

Where: Visitor Center at Valley Forge

Learn about mastodons, saber-toothed cats, giant ground sloths, and lots of other incredible critters that walked the ancient landscape of Valley Forge hundreds of thousands of years before George Washington and the Continental Army ever set foot here.

See reproduction and actual fossils found at Valley Forge, earn your Junior Paleontologist badge, and hear science talks about the geolgic history of Valley Forge, the Port Kennedy Bone Cave, and the Bone Wars.

Join a park ranger at 7 pm at Muhlenberg's Brigade for a fossil-themed campfire talk.

The full Valley Forge Fossil Day program schedule will be released in early October.

Fees

This event is free to attend.

Location

Fossil Day activities take place inside the Visitor Center at Valley Forge and the nearby meeting room building.

Latitude and Longitude 40.101382, -75.422327

Schedule

Date:

Oct 17, 2026

Time:

12:00 PM

Duration:

4 hours

Valley Forge Fossil Day activities take place between 12 pm and 4pm. Some activities like the science talks are scheduled for specific times. Other activities, like the Junior Paleontologist program and the table from the Academy of Natural Sciences are ongoing.

Contact Information

Sean Walsh-Haehle

Contact Us

Event Type

  • Children’s Program
  • Exhibition/Show
  • Other
  • Talk
Tags: valley forge, valley forge national historical park, fossil, fossil day, mastodon, ice age, ice age animals