Where to Find Biotite in Maine
Maine has 6 mapped collecting spots that report biotite, spread across 5 counties. The largest share sits in Sagadahoc County County with 2 spots. 6 of the spots are on land mapped as publicly accessible.
Spot list checked against source data on April 1, 2026.
Map of 6 biotite collecting spots in Maine
Best counties for biotite in Maine
Ranked by the number of mapped biotite spots. County links open the full rockhounding page for that county.
- Sagadahoc County2 spots
- Androscoggin County1 spot
- Hancock County1 spot
- Lincoln County1 spot
- Oxford County1 spot
Every biotite spot we track in Maine
Sorted by county. Coordinates open in Google Maps.
| Spot | County | Minerals | Coordinates | Access |
|---|---|---|---|---|
| Mount Apatite QuarriesStevens Mill Road | Androscoggin County |
| 44.0871, -70.2904 | Public |
| Catherine MountainBlackswoods Road | Hancock County |
| 44.6172, -68.0841 | Public |
| Edgecomb QuarryRiver Link | Lincoln County | 43.9632, -69.6178 | Public | |
| Singepole Mountain QuarrySingepole Trail | Oxford County |
| 44.2267, -70.4536 | Public |
| HaveyTrenton Place | Sagadahoc County | 43.9757, -69.9448 | Public | |
| Porcupine Hill QuarryTurkey Run | Sagadahoc County | 43.9595, -69.9838 | Public |
Before you go
Read the biotite identification guide so you know what a keeper looks like in the field: Biotite in the encyclopedia.
Biotite in Maine FAQ
Where can you find biotite in Maine?+
The mapped spots concentrate in Sagadahoc County County, Androscoggin County County, and Hancock County County. Every spot on this page appears on the map above with coordinates and access notes.
How many biotite spots are mapped in Maine?+
6 spots across 5 counties. The RockHoundR app keeps the same spots on an offline map with public land overlays, geology layers, and your saved finds.
Is it legal to collect biotite in Maine?+
Hand collecting of common rocks and minerals in small amounts for personal use is generally allowed on BLM and U.S. Forest Service land, with limits set by the local field office. National parks, most state parks, and tribal land are closed to collecting. 6 of the 6 mapped spots here sit on land marked public. Always confirm current rules with the managing agency before you dig.
Where else to find biotite
More minerals to hunt in Maine
Hunt biotite in Maine with the map in your pocket
RockHoundR puts these spots on an offline map with BLM and Forest Service overlays, geology layers, and a log for your finds.
