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Where to Find Agates near Washington, DC

13 of the mapped rockhounding spots within 150 miles of Washington report agate. The closest is Bare Hills mining district, about 39 miles out (49 min drive).

Agates are banded chalcedony nodules that survive long after their volcanic host rock rots away, which is why they concentrate in gravel bars, beaches, and glacial deposits far from where they formed.

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Every agate spot within 150 miles of Washington

Types of agates reported near Washington

Counts reflect how many spots in this radius mention each variety.

Agates near Washington FAQ

Where can I find agates near Washington?+
13 mapped spots within about 150 miles of Washington report agate. The closest is Bare Hills mining district in Baltimore County, roughly 39 miles away (49 min drive). The full list with coordinates is on this page.
Can I collect agates on public land near Washington?+
12 of the 13 spots here sit on land mapped as publicly accessible. Casual hand collecting of common rocks and minerals is allowed on most BLM and Forest Service land with limits set by the local field office; national parks and most state parks are closed to collecting. Confirm current rules with the managing agency before a trip.
What is the fastest way to spot an agate in a gravel bed?+
Look for waxy luster and translucence rather than color. Wet the stone or look right after rain: agate glows softly at thin edges when backlit, while jasper and chert stay opaque. Banding clinches it but is often hidden until the stone is cracked or tumbled.
How far from Washington do I need to drive?+
The nearest agate spot is about 39 miles out, and the farthest on this list is 140 miles. Most fall inside a normal weekend day-trip radius.

Keep exploring from Washington

All rockhounding near Washington →Where to Find Geodes near Washington →Crystal Hunting near Washington →Fossil Hunting near Washington →Where to Find Petrified Wood near Washington →
Agates in Pennsylvania (statewide) →Agates in Virginia (statewide) →Agates in New Jersey (statewide) →

Where to Find Agates near other cities

Hunt agates around Washington with the map in your pocket

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