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Closure notice and historical dive-site listing.
Dive Spot Guide•
Millbrook Quarry
Millbrook Quarry is a closed freshwater training quarry in Virginia.
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Closed to public diving since 2020; historically a shore-access quarry with training platforms and a deeper artifact side.
About Millbrook Quarry
Millbrook Quarry, also known as Lake Millbrook, is a closed freshwater quarry site in Haymarket, Virginia. It was historically used for training and checkout dives from both beaches, with a shallow side for beginner work and a deeper artifact side for more advanced exploration. Since public diving was reported closed in 2020, the useful planning frame is historical rather than active.
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Where Is Millbrook Quarry?
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Community sourced coordinates.
Millbrook Quarry Planning Details
Depth range, seasonality, and planning context.
Reported Depth
3m - 30m
Depth Note
One training reef area was shallow enough for checkout dives, while the deeper feature side reached the anchor at roughly 31 m.
Best Season
Historically, spring through fall offered the most practical quarry diving.
Typical Conditions
Freshwater quarry conditions with low visibility and a controlled training environment.
Safety & Access At Millbrook Quarry
Hazards, restrictions, and access requirements.
Key Hazards
Restricted access
Safety Notes
Do not plan a dive here without confirming access status with the land manager or an active operator.
Access Restrictions
Closed to public diving.
Legal Notes
The quarry was reported closed as of March 2020; verify any reopening with the current land manager before planning.
Local Intel For Millbrook Quarry
Community notes to help plan your visit.
Scuba Diving
Historically used for training dives and deeper quarry exploration.
Freediving
Historical freedive use is not well supported; the site is better treated as a scuba quarry.
Snorkeling
Not a primary snorkel site; the useful planning frame is historical quarry training rather than surface recreation.
Millbrook Quarry Dive Conditions Planner
Use the planner to scan this week, inspect today in local time, and understand how exposure shapes conditions at Millbrook Quarry.
Current Snapshot
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Swell No data · Period unavailable
Visibility Outlook
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Exposure Profile at Millbrook Quarry
Directional shelter context for incoming swell.
Exposure Note
Hourly forecast data is not available yet.
Wildlife at Millbrook Quarry
Species commonly reported at this site, with direct links into their wildlife guides.
Recent Logged Visits At Millbrook Quarry
Community dive logs and visit reports for this site.
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Dive Spot Log Averages At Millbrook Quarry
Average conditions based on logged dives & visits.
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Millbrook Quarry Guide - Frequently Asked Questions
Planning answers for access, conditions, timing, and site logistics.
Millbrook Quarry Guide - Sources and Updates
Last Updated
Research Sources
www.facebook.com · Community Page
Closure announcement from the quarry page.
www.olneyscuba.org · Dive Club
Historical dive-club event with training and facilities detail.
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