Iowa · Black Hawk · Ready
Waterloo / Lost Island KOA Resort — Mining Sluice, Iowa
Material referenceCan you collect at Waterloo / Lost Island KOA Resort?
Yes. Collecting is supported at Waterloo / Lost Island KOA Resort for operator-provided mining material / gem-mining sluice, under the current rules of the site or land manager. Follow posted limits, fees and closures on the day you go.
- Materials: operator-provided mining material / gem-mining sluice
- Managed by / source: Waterloo / Lost Island KOA Resort
- County: Black Hawk, Iowa
- Last checked:
LOCATION FIELD MAP
Local map for Waterloo / Lost Island KOA Resort — Mining Sluice
No exact primary coordinate is published for this record, so the map uses regional context without inventing a specimen pin.
Waterloo / Lost Island KOA Resort — Mining Sluice is a Ready rockhounding record in Black Hawk, Iowa. The recorded activity or material is operator-provided mining material / gem-mining sluice. The recorded manager or operating context is Waterloo / Lost Island KOA Resort. Ready means the current evidence supports the modeled activity, but visitors should still recheck current posted rules, closures, hours, fees, claims, collecting limits and site-specific notices before travel.
Can I collect at Waterloo / Lost Island KOA Resort — Mining Sluice?
Ready. Current KOA recreation page lists an on-site mining sluice operating June 1–August 31 from 8 AM to 9 PM with bags of mining material sold in the store. This permission applies only to purchased/operator-provided material within the campground attraction.
Ready means the current evidence supports the modeled activity, but visitors should still recheck current posted rules, closures, hours, fees, claims, collecting limits and site-specific notices before travel.
Recorded destination: 4550 La Porte Rd, Waterloo, IA 50701
What rocks, minerals, fossils or collecting interests are associated with it?
The record lists operator-provided mining material / gem-mining sluice. This description is tied to this atlas entry and should be read together with the access status below.
Who manages the place or provides the evidence context?
The recorded manager or context is Waterloo / Lost Island KOA Resort.
What evidence supports this status?
The record was last reviewed on 2026-08-30. Evidence and management context: Waterloo / Lost Island KOA Resort. Current named Iowa collecting program/site passes authority/access/retention gates within its exact posted or operator-managed footprint.
Source verification: This guide names the recorded evidence or land-manager context but does not provide a direct document-level link establishing collecting permission. Before collecting, confirm the current rule and any applicable restrictions with the named authority.
How precise is the map marker?
Navigation uses the recorded public destination or address for Waterloo / Lost Island KOA Resort — Mining Sluice. The destination is a travel reference, not a specimen-level promise or a substitute for current access rules.
Checks specific to this location
- Confirm any current permit, fee, booking or operator requirements before travelling.
- Verify the exact destination, the land manager’s latest rules and safe travel conditions before leaving.
When was this information last checked?
The recorded review date is August 30, 2026. Treat that date as the evidence snapshot used for this classification. Conditions can change after review, so field decisions should use the newest posted rules and manager information.
Is a map pin the same as collecting permission?
No. A map pin answers a navigation or geographic-context question. The status and evidence answer the permission question. Exact coordinates, public destination addresses and approximate county or regional context are deliberately kept separate so geographic precision is not confused with legal authority.
Nearby cities: this place is about 95 miles from Des Moines, IA.
LOCATION-SPECIFIC FIELD ANSWER
Waterloo / Lost Island KOA Resort — Mining Sluice rockhounding: why this is a stronger field lead
The atlas currently classifies this record as Ready. That means the modeled activity has stronger supporting evidence than a Research-only pin, but current posted rules, claims, closures and site conditions still control the trip.
What rocks or minerals are associated with Waterloo / Lost Island KOA Resort — Mining Sluice?
The record associates this place with operator-provided mining material / gem-mining sluice. That association is a field-research lead, not a guarantee that material can be found or legally collected at every point around the marker.
What should be checked before visiting?
The current manager or evidence context is Waterloo / Lost Island KOA Resort. Verify that authority and the exact parcel or boundary before relying on access information. Ready means the current evidence supports the modeled activity, but visitors should still recheck current posted rules, closures, hours, fees, claims, collecting limits and site-specific notices before travel. The evidence snapshot was last checked 2026-08-30.
How should this record be used for “rockhounding near me”?
This record is eligible for the site’s Rockhounding Near Me planning layer because its status and geographic context meet the current eligibility rules.
COMMUNITY FIELD INTELLIGENCE
Public Testimony & Field Stories
Approved visitor reports add real-world context to the official and geological evidence above. Community testimony never overrides land-manager rules, ownership, claims, closures or protected-resource law.
Minerals recorded in Black Hawk County, Iowa
USGS topographic maps show 82 historical mine, quarry and pit features in Black Hawk County, mostly gravel pits, sand pits, quarries. 46 of them link to a USGS Mineral Resources Data System site that names a commodity. The most common are sand and gravel, building and crushed stone, iron, fluorite, barite, copper.
Minerals reported at those sites: Barite, Fluorite, Pyrite.
Named USGS records in the county:
- Unknown: sand and gravel
- Waterloo South Quarry: iron, fluorite, barite
These are historical mining and occurrence records for the county as a whole, not for this exact site. Source: USGS MRDS and USGS topographic-map mine features, compiled November 2026.