Basin Gulch historical drill intercepts

The best published Basin Gulch drill intercept by grade is 156 g/t Au over 3 meters, and the longest is 0.66 g/t Au over 326 meters from surface. These five highlights come from more than 320 historical drill holes on the Basin Gulch Property, and Lannister Mining plans confirmation drilling of historical intercepts before a maiden mineral resource estimate.

What are the best drill results at Basin Gulch?

Ranked by gold grade: 156 g/t Au over 3 m, 25 g/t Au over 14 m, 3.2 g/t Au over 72 m from surface, 1.8 g/t Au over 162 m from surface, and 0.66 g/t Au over 326 m from surface. If you value continuity over grade, the three intercepts that start at surface matter most.

Drill intercepts ranked by gold grade

Each historical intercept is listed with its grade, interval length in meters and feet, whether it is stated to start at surface, and a calculated gram-metre value (grade multiplied by length) for comparison.

Published by Lannister Mining, the company advancing the Basin Gulch Property. Figures are stated exactly as published for the property.

Basin Gulch historical drill intercepts, ranked by gold grade. Published by Lannister Mining.
Rank	Gold grade	Interval	Starts at surface	Gram-metres (calculated)
1	156 g/t Au	3 m (9.8 ft)	Not stated	468
2	25 g/t Au	14 m (45.9 ft)	Not stated	350
3	3.2 g/t Au	72 m (236.2 ft)	Yes	230.4
4	1.8 g/t Au	162 m (531.5 ft)	Yes	291.6
5	0.66 g/t Au	326 m (1,069.6 ft)	Yes	215.16

#1
156 g/t Au over 3 m (9.8 ft)
Highest gold grade of the published intercepts, over a short 3 meter interval.
#2
25 g/t Au over 14 m (45.9 ft)
Second highest grade, carried over 14 meters, a wider high-grade interval.
#3
3.2 g/t Au over 72 m (236.2 ft) from surface
Starts at surface and holds 3.2 g/t Au for 72 meters.
#4
1.8 g/t Au over 162 m (531.5 ft) from surface
Starts at surface and holds 1.8 g/t Au for 162 meters.
#5
0.66 g/t Au over 326 m (1,069.6 ft) from surface
Lowest grade but longest interval: 326 meters from surface.

How to read the Basin Gulch intercepts

Definition

What is a drill intercept?

A drill intercept is a continuous length of core or chips from one drill hole, reported with its average grade. At Basin Gulch, intercepts are given in grams of gold per tonne (g/t Au) over a length in meters, with the feet equivalent. For example, 25 g/t Au over 14 meters is the same interval as 25 g/t Au over 45.9 feet.

Interval length is drilled length. True thickness depends on the angle between the hole and the mineralized zone, which is why confirmation drilling matters before figures are used in an estimate.

Pattern

Two styles of result in one dataset

The Basin Gulch drilling data shows two kinds of result. Short, very high-grade intervals, such as 156 g/t Au over 3 meters and 25 g/t Au over 14 meters, point to high-grade zones. Long intervals from surface, such as 1.8 g/t Au over 162 meters and 0.66 g/t Au over 326 meters, show broad, continuous mineralization.

Together they suggest that grade and width both deserve testing as the Lannister Mining team expands drilling at depth and along strike, where mineralization remains open.

Gram-metre calculator

Compare any interval with the Basin Gulch highlights. Enter a gold grade and an interval length to get gram-metres. For reference, 1.8 g/t Au over 162 meters equals 291.6 gram-metres.

Assumptions

Gram-metres equal gold grade in g/t multiplied by interval length in meters.
Feet use 1 meter = 3.28084 feet. Results are shown to two decimal places.
Interval length is the drilled length, not true thickness.
This is an estimate for comparing intervals, not a resource figure or technical opinion.

How we chose and ordered these intercepts

This list includes every historical drill highlight published for the Basin Gulch Property, with nothing added or removed. Intercepts are ordered by one criterion, gold grade in g/t Au, from highest to lowest. Gram-metres are calculated by multiplying grade by length and are shown for comparison only. This page was written by Lannister Mining, which publishes this site and advances the property. See the methodology page for the full approach.

For the full picture, start with the Basin Gulch drilling data overview, which ties drill holes, trenches, claims and geology together.

Common questions

Short answers to what field geologists and exploration partners ask most often.

How many drill holes have been completed at Basin Gulch?

More than 320 historical drill holes have been completed on the Basin Gulch Property. They form the historical dataset that Lannister Mining plans to expand and confirm with new drilling, and both the historical holes and new work programs will feed a future maiden mineral resource estimate.

What is the best drill intercept at Basin Gulch?

By gold grade, the highest published historical intercept is 156 g/t Au over 3 meters (9.8 feet). By length from surface, the longest is 0.66 g/t Au over 326 meters (1,069.6 feet). Which matters more depends on whether you are assessing high-grade zones or continuity over long widths.

Do the Basin Gulch drill intercepts start at surface?

Three of the five published highlight intercepts start at surface: 1.8 g/t Au over 162 meters, 0.66 g/t Au over 326 meters, and 3.2 g/t Au over 72 meters. Gold beginning at surface is a key reason the mineralization at Basin Gulch is described as near-surface.

What units are the Basin Gulch drill results reported in?

Grades are reported in grams per tonne (g/t) of gold, written Au, and silver, written Ag. Interval lengths are given in meters with feet equivalents, for example 25 g/t Au over 14 meters or 45.9 feet. One gram per tonne is the same as one part per million.

Are the Basin Gulch drill results historical?

Yes. The published intercepts come from historical drilling on the property. Lannister Mining plans expansion and confirmation drilling of the historical drill intercepts, and both historical drilling and new work programs will be used in a future maiden mineral resource estimate.

What is a gram-metre and why do geologists use it?

A gram-metre is grade multiplied by interval length, so 25 g/t Au over 14 meters equals 350 gram-metres. Geologists use it to compare a short high-grade interval with a long lower-grade one on a single scale. The drill intercepts page on this site includes a simple gram-metre calculator.

Read all 45 Basin Gulch questions