Quarry Walls Walk in Overseas Highway

Overseas Highway, FL

Quarry Walls Walk

A tiny loop through fossil coral and old quarry walls.

Photo: Wikimedia Commons
Length
0.2mi
Time
20min
Elevation
Flat
Difficulty
Easy
  • Loop
  • High point 16 ft
  • #12 of 26 in Overseas Highway

Hear the audio tour

Windley Key: A Reef Inside a Quarry

Overview

About Quarry Walls Walk

Why go

  • Fossil cross-sections and cut quarry walls sit right beside the path.
  • A short walk ties Keys geology to the Overseas Railroad.

Heads up

  • Very little mileage; most of the payoff comes from stopping to read the quarry walls.

Map & elevation

The route

Loading the Overseas Highway map
Full map
Elevation13–16 ft
TrailheadAlison Fahrer Environmental Education Center trail access24.95035, -80.59560
Keep this map with you offline in the Parkwolf app

Plan your hike

Before you go

Parking

Use the main parking area at Windley Key Fossil Reef Geological State Park, 84900 Overseas Highway (Mile Marker 85.5). Walk to the Alison Fahrer Environmental Education Center; the red route access is on the rock ledge behind it.

Safety

The park limits pets to designated areas, but its materials do not confirm whether Quarry Walls Walk is designated. Check with park staff before bringing a dog; where pets are allowed, the leash limit is six feet.

3 active Overseas Highway alerts

  • CautionCoastal flooding across the Florida KeysA Coastal Flood Warning remains in effect for the Upper Keys and Coastal Flood Advisories remain in effect for the Middle and Lower Keys until 5 a.m.Official details
  • CautionNighttime lane closures on Seven Mile BridgeExpect possible nighttime lane closures on Seven Mile Bridge for FDOT’s rehabilitation project to repair and strengthen the bridge.Official details
See all 3 alerts
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Parkwolf Tour GuideThe highest, rockiest slopes around here are a summer buffet for grizzly bears.

Overseas Highway Tour Guide

Your drive to Quarry Walls Walk, narrated.

Parkwolf is a GPS audio tour guide for Overseas Highway. As you drive, it chimes in with what’s ahead: hidden gems, upcoming stops, history, geology, and wildlife, right through your car’s speakers.

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Recorded for this trailhead

Windley Key: A Reef Inside a Quarry
0:00 / 0:30
“You're coming up on Windley Key Fossil Reef Geological State Park, where quarrying exposed an ancient coral reef.”

Plays as you drive up to this trailhead in the Parkwolf Overseas Highway Tour Guide.

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  • Works offlinemaps, 26 trails, 88 places, and audio download before you lose signal
  • CarPlay readysimple controls built for the drive
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Trail guide

Hiking Quarry Walls Walk

The short red loopQuarry Walls Walk is the red loop around Windley Quarry at Windley Key Fossil Reef Geological…

Quarry Walls Walk is the red loop around Windley Quarry at Windley Key Fossil Reef Geological State Park. The official figure is 1/8 mile for the loop itself. Starting from the visitor-center end of the mapped connector and retracing it after the circuit makes the complete walk about 0.16 mile. Allow roughly 20 minutes if you want to stop and study the rock. This is a brief geology stop, not a long hike; come for the reef exposed by quarrying.

Look closely at the rockThe cut limestone walls rise as high as eight feet and expose cross-sections of ancient coral.

The cut limestone walls rise as high as eight feet and expose cross-sections of ancient coral. Numbered trail markers correspond to the park guide; it points out coral forms and smooth holes left by an ancient mussel. Pick up the guide at the education center before setting out. For a photo, move in close to one cross-section: the coral pattern is the memorable part, more than another wide shot of the quarry floor.

How the quarry fitsThis is fossilized Key Largo limestone from a reef formed nearly 125,000 years ago.

This is fossilized Key Largo limestone from a reef formed nearly 125,000 years ago. The Florida East Coast Railway bought Windley Key land for $852.80 in 1908, and quarry stone went into the Overseas Railroad's bed and bridge approaches. Later, polished decorative stone from the quarry was sold as keystone; quarrying continued into the 1960s. A short circuit here brings both the geology and the railroad story into view.

Start and accessPark at the main visitor-center area and follow the red markers to the loop behind the Alison…

Park at the main visitor-center area and follow the red markers to the loop behind the Alison Fahrer Environmental Education Center. Stay with the red Quarry Walls Walk: the park has several nearby trails, and longer descriptions that combine this circuit with the separate Windley Trail refer to a different route. The park offers a powered Action Trackchair for its trails and quarries at no extra cost with park entry; ask the education center whether it suits this route. Pet access is limited to designated areas, and the park material does not say whether this loop is one of them, so check before bringing a dog.

Wildlife

Wildlife in Overseas Highway

All Overseas Highway wildlife maps

Sighting maps show where each species has been reported across Overseas Highway. Wildlife moves, so no sighting is guaranteed.

Keep exploring

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Parkwolf’s Overseas Highway ranking

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