National Limestone Quarries - Middleburg and Mt Pleasant Mills, PA

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Date:
        
10/4/2025
    
9:30 AM - 4:00 PM

Location: 3499 Quarry Rd, Middleburg, PA 17842

Join us for an unforgettable rockhounding adventure at the famous National Limestone Quarries in Middleburg and Mount Pleasant Mills, Pennsylvania — followed by a delicious BBQ cookout in Mifflinburg, PA!

This all-day trip offers the chance to collect exciting specimens, connect with fellow rock enthusiasts, and enjoy great food afterward.

Collecting Locations

  • Middleburg Quarry Office
    3499 Quarry Rd, Middleburg, PA 17842

  • Mount Pleasant Mills Quarry
    100 Quarry Rd, Mount Pleasant Mills, PA 17853

  • BBQ Cookout (hosted by Jim Van Fleet)
    222 Market St, Mifflinburg, PA 17844

Date & Time

  • Date: Saturday, October 4

  • Meet-Up Time: 9:30 AM SHARP

  • Briefing: Starts within 20 minutes of arrival at the Middleburg Quarry Office

Travel & Carpooling

  • Carpooling is strongly encouraged!

  • Printed directions to the second quarry and BBQ location will be provided at check-in.

  • GPS use is also recommended.

Collecting Schedule

  • Middleburg Quarry: 10:00 AM – 1:00 PM

  • Mount Pleasant Mills Quarry: 1:00 PM – 4:00 PM

  • BBQ Cookout in Mifflinburg: After 4:00 PM – all are invited!

What to Bring

  • Plenty of water, lunch/snacks

  • Rock hammer, chisels, sledgehammer, pry bars

  • Buckets, newspaper, backpack for specimens

  • Shovel, sunscreen, bug spray

Safety Requirements

  • Hard Hat:  Required

  • Other Gear: Safety glasses, sturdy footwear, gloves

  • Waiver: All participants must sign a Hold Harmless Agreement and attendance sheet

Why Join?

  • Access to two premier Pennsylvania collecting sites famous for unique specimens

  • A full day of digging, hammering, and discovery

  • End the day with Jim Van Fleet’s outstanding cookout in Mifflinburg

  • Unlimited attendance – everyone is welcome!

Don’t miss this chance to explore the National Limestone Quarries in PA with fellow rockhounds and enjoy an evening of great food and camaraderie!

Fee: FREE

Safety Information: National Limestone Quarries (NLQ) requires HARD HAT, Safety / Steel Tip or Composite Rubber boots, safety goggles, work gloves for BOTH quarries. If you don't have these, visit Home Depot or Harbor Freight or similar and get the soon.

Tools: Rock Hammer, Sledge Hammer, Chisels, Bucket, Safety glasses, sturdy footwear, gloves, lots of water

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