Little Falls: Lake Superior Agate & Garnet Rockhounding in Morrison County, Minnesota

Public accessBest spot3 mineralsMorrison County, MinnesotaUpdated July 2026

Minerals reported: 3
Elevation: 1,140 ft
Best months: April to October

The Mississippi River gravels around Little Falls carry Lake Superior agate along with staurolite, the twinned fairy cross crystals that made the area locally famous. The best-known staurolite ground is the shoreline below Blanchard Dam south of town, one of the few places in the world where the crosses can be surface-collected. Morrison County's glacial gravel pits also produce agate, quartz, and jasper. Reported finds include lake superior agate, garnet, staurolite. Below: coordinates, access notes, nearby spots, and trip-planning links.

Plan your visit

Generally open to casual rockhounding

County: Morrison County
State: Minnesota
Nearest road: 180th Street
Postcode: 56345
Coordinates: 46.01957, -94.38914

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Coordinates are approximate. Confirm the exact ground in the RockHoundR app, where land overlays show which agency manages the area.

Land & collecting status

Generally open to casual rockhounding

Most public-tagged spots sit on BLM, U.S. Forest Service, or other federal land where reasonable hand collecting of common rocks and minerals is allowed. Confirm posted rules and active mining claims before you dig.

Access note: Staurolite is surface-collected along the public Mississippi shoreline below Blanchard Dam; digging with shovels or tools is prohibited, so pick loose crosses only. Glacial-gravel agate collecting elsewhere in the county requires landowner or gravel-pit permission. Charles A. Lindbergh State Park in Little Falls does not allow rock collecting.

Public-land rules vary by agency, season, and field office. The RockHoundR app pulls live BLM, USFS, NPS, and tribal overlays so you can see exactly which agency manages the ground at this spot.

Best time to visit Little Falls

24°J

29°F

42°M

58°A

71°M

80°J

85°J

82°A

74°S

59°O

42°N

28°D

Comfortable months (45 to 90°F highs)

Best months: April to October. Typical highs run 85°F in midsummer and 24°F in midwinter, with winter lows near 3°F.

Climate normals: NOAA 1991-2020 monthlies, LITTLE FALLS 2NNE station (2 mi away).

Geology at Little Falls

This spot sits on Little Falls Formation, mapped as schist and slate that formed roughly 2500 to 1600 million years ago. Metamorphic rock like this weathers into resistant float, and minerals that survive transport typically concentrate in nearby drainages.

Mapped unit: Little Falls Formation
Age: 2500–1600 Ma (Paleoproterozoic)
Rock types: schist and slate
Elevation: 1,140 ft

Geologic mapping via Macrostrat and the underlying state geological survey maps (CC BY 4.0). Bedrock at the surface can vary within a mapped unit.

Today's weather

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Sources & verification

Spot details combine the public RockHoundR location dataset, normalized mineral labels, agency land-status checks in the app, and community submissions. Coordinates are approximate until verified in the field.

Minnesota Geological Survey
Minnesota DNR state land rules
Superior National Forest
Community submissions reviewed against published agency rules

Found at Little Falls

Each name opens all spots that produce that material; the encyclopedia link opens the full ID and field guide.

Nearby rockhounding spots

Other rockhounding spots within driving distance of Little Falls.

Charles Lindbergh State ParkMorrison County, Minnesota · 4 mi awayStaurolite
RoyaltonMorrison County, Minnesota · 14 mi awayStaurolite
BrainerdCrow Wing County, Minnesota · 27 mi awayLake Superior Agate
Arco MineCrow Wing County, Minnesota · 37 mi awayAgate, Chalcedony, Jasper
Portsmouth MineCrow Wing County, Minnesota · 38 mi awayAgate, Chalcedony, Jasper
Pine CityPine County, Minnesota · 69 mi awayChalcocite
OsseoHennepin County, Minnesota · 80 mi awayLake Superior Agate, Chalcedony, Jasper
Airport PitCarlton County, Minnesota · 81 mi awayAgate

Little Falls FAQ

Where is Little Falls?+

Little Falls is in Morrison County, Minnesota, at 46.01957, -94.38914. Nearest road: 180th Street.

What rocks and minerals can you find at Little Falls?+

Little Falls is reported to produce Lake Superior Agate, Garnet, Staurolite.

Is collecting allowed at Little Falls?+

Generally open to casual rockhounding. Most public-tagged spots sit on BLM, U.S. Forest Service, or other federal land where reasonable hand collecting of common rocks and minerals is allowed. Confirm posted rules and active mining claims before you dig. Always confirm current rules with the managing agency before a trip.

What tools should I bring to Little Falls?+

Most agate and jasper is surface float: bring a spray bottle, a pick or small shovel, and a sturdy bag. Wet stones show their banding and translucence.

When is the best time to visit Little Falls?+

The most comfortable months at Little Falls are April to October.

How do I get to Little Falls?+

Open the directions link to navigate to 46.01957, -94.38914 in Google Maps. The nearest road is 180th Street.

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