AMC offers COVID conscious opportunities to enjoy the outdoors locally, visit many of our lodges and campgrounds, and join virtual events and activities. Participants of all in-person events should bring and wear face coverings, expect social distancing, and changes to our usual practices. To support contact tracing and hands-free signing of the AMC liability waiver, online registration is required for all in person AMC events.

Backpacking the Hammersley Wild Area in PA.

Date and Time

Friday, July 16, 2021 3:00PM - Sunday, July 18, 2021 1:00PM


Cross Fork Trail Head (Cross Fork, PA),
Pennsylvania, Central,


Registration is required for this activity.

This event is full

Please note:
In order to comply with Pennsylvania Youth Protection Laws, all children under 18 years of age must be accompanied by their parent or legal guardian. This policy applies for all events offered by the Delaware Valley Chapter as well as any other chapter events within the state of Pennsylvania.


This two night 10 mile backpack follows the Twin Sisters Trail from the north and heading south for appoximately 2 miles camps both nights at a beautiful dry campsite located at the site of a forest fire in 1964. On Saturday we will do an approximately 6 mile loop hike descending from here via bushwhack to the Susquehannock Trail in the valley and using a gas pipeline right of way return to our campsite. Sunday we return to our cars by noon. The Hammersley Wild Area lies within the Susquehannock State Forest and is known for its beautiful forests and streams. Trekkers remark about solitude, quietude, and dark evening skies given it is the largest roadless area in Pennsylvania. There are 50+ miles of marked hiking trails including a 9-mile portion of the Susquehannock Trail System (STS). **This backpack is being co-led by Michael Ziemski, a leader in training who is assisting David Mong who is the leader of record.** To ensure your safety and enable you to join us on this hike, you must register here on the AMC Activities Database web site, complete the liability waiver form, and have your registration confirmed by this activity's AMC Chapter Leader. You will be notified by email when you are confirmed as a participant. ANYONE NOT RECEIVING A REGISTRATION CONFIRMATION FROM THIS ACTIVITY'S LEADER WILL NOT BE ALLOWED TO JOIN THE GROUP AT THE TRAILHEAD. AN RSVP ON MEETUP IS NOT CONSIDERED BEING REGISTERED FOR THIS ACTIVITY - THAT CAN ONLY BE ACCOMPLISHED HERE ON THE AMC ACTIVITY DATABASE WEB SITE. In the event that social distancing (6 feet) cannot be maintained during this activity, every participant must have a suitable medical or cloth mask made of two layers of fabric with them which covers their nose and mouth that they can use. Vigorous: Suitable for those with recent similar experience and/or demonstrated proficiency, such as being active in sports or often (regular) engagement in vigorous physical activity. Ability to perform at the expected level for back-to-back days for multiday trips. Expect to be active up to 5-6 hours per day, with brief breaks. Rated as vigorous due to the steep climb on the pipeline and that it includes a bushwhack in what may be brushy conditions. Bear canisters or Ursacks are required.

AMC Trip Policy



Related Link(s):

Hammersley Brochure & Map
A photo album of a previous trip to a portion of this backpack
Endless Mountains Trip Report that includes the bushwhack
Mid Atlantic Hikes Trip Report. Does not include our bushwhack.

Driving Directions

Click map for driving directions

It is approximately a 45 minuted drive to the trailhead from the meeting point on forest roads.

Camping spot at site of a 1964 forest fire on the Twin Sisters Trail.



Offered By

N.Y. - North Jersey






Adults (18+)


I am a recently retired educator who always made learning about nature and interacting with the natural world a priority for my students. I am beginning my leadership role with AMC where I have been a member since 2017. I enjoy backpacking/hiking because it gives me an excuse to eat handfuls of roasted nuts and peanut M&Ms.


I have been leading backpacking trips for the Appalachian Mountain Club and the Adirondack Mountain Club since 1975. I enjoy taking the time to look at the scenery and have a relatively slow pace. I am patient with beginners and enjoy helping them learn new skills.


This is my 4th season leading - Co leading backpacking trips for AMC. I am Mountain Leadership and Wilderness First aid trained by AMC. Join me to explore nature and experience self reliance and solitude.