Drill Results Map — Idaho

Idaho — home to the world-famous Coeur d'Alene silver district, with over one billion ounces of historical production — is a prime target for junior exploration companies. Here's how to create a professional drill results map using Exploration Maps in 15–30 minutes.

Example drill results map created in Exploration Maps — Example drill results map exported from Exploration Maps — style your Idaho data the same way.

About Mining in Idaho

Idaho's Coeur d'Alene Mining District is one of the world's richest silver districts, producing over one billion ounces of silver historically, with active mines still operating today.

Key minerals: silver, gold, lead, zinc, cobalt, phosphate. Notable deposits: Coeur d'Alene District, Bunker Hill, Lucky Friday, Blackbird. Mining districts: Coeur d'Alene, Salmon River, Cobalt, Lemhi Pass.

The Bureau of Land Management (BLM) administers mineral rights in Idaho. Claim data is accessible through BLM MLRS (Mineral & Land Records System).

Getting Mining Data for Idaho

Portal	Formats	Notes
BLM MLRS (Mineral & Land Records System)	MLRS reports + map viewer (claims by legal description)	Idaho straddles UTM Zones 11N and 12N — Coeur d'Alene District properties are in Zone 11N (EPSG:32611), while Boise and south Idaho use Zone 12N. Always check which zone your claim coordinates were exported in before converting to WGS84, as mixing zones causes a visible east-west shift on the map.

How to Create a Drill Results Map for Idaho

For a full step-by-step guide to drill results maps, see How to Make a Drill Results Map.

Import your drill collar CSV (columns: hole ID, latitude, longitude, depth, assay)
Assign the Drillholes layer role
Import the property claims boundary as GeoJSON
Add callout labels to key holes showing hole ID and best intercept
Use Badge Label type to highlight the highest-grade holes
Configure the title with program name and date
Set the Landscape 16:9 ratio for news release figures
Export as PNG at 2× for email and PDF for the news release attachment

Labelling a drillhole with its best intercept in Exploration Maps.

Tip for Idaho: The Coeur d'Alene district has over a century of overlapping claim filings — show your current active claims as a clearly filled polygon and historical workings (adits, shafts) as a separate point layer with distinct symbols, making the distinction explicit in the legend for technical reviewers.

Recommended Settings for Idaho

Basemap: Light or Satellite
Design theme: Investor — Navy & White
Export format: PNG at 2× for investor presentations, PDF (Letter or A4) for NI 43-101 reports
Coordinate system: Ensure source data is in WGS84 (EPSG:4326)

Common Use Cases in Idaho

Exploration news releases
NI 43-101 technical reports
Investor day presentations
Analyst briefings

Frequently Asked Questions

What file format do I need for Idaho mineral claims data?

Idaho mineral claims boundaries are available from BLM MLRS (Mineral & Land Records System) and can typically be downloaded as Shapefiles or KML. Convert these to GeoJSON at mapshaper.org before importing into Exploration Maps.

Who regulates mineral claims in Idaho?

Mineral claims in Idaho are regulated by the Bureau of Land Management (BLM). All tenure and claims data can be queried through BLM MLRS (Mineral & Land Records System).

What minerals are typically mapped in Idaho?

Idaho is known for its silver, gold, lead, zinc deposits. Key producing and exploration-stage properties include Coeur d'Alene District, Bunker Hill, Lucky Friday. The main mining districts are Coeur d'Alene, Salmon River, Cobalt.

Can I export a Idaho drill results map for a NI 43-101 report?

Yes. Exploration Maps exports PNG and PDF at 2–3× pixel ratio, suitable for inclusion in NI 43-101 technical reports as required figures. The export includes north arrow, scale bar, legend, and title block — all standard map elements required for NI 43-101 compliance.