# Presentation: 682589

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- Mining Claims

## Mining Claims

- This powerpoint describes in detail how the land descriptions for a mining claim are defined and mapped in BLM’s automated computer systems:
- LR2000 (_[www.blm.gov/lr2000](http://www.blm.gov/lr2000)_)
- NILS GeoCommunicator (_[www.geocommunicator.gov](http://www.geocommunicator.gov/)_)
- This powerpoint must be viewed as a slide show.

## Mining Claim Recordation at BLM

- When a mining claim is filed with the BLM it will be recorded in the BLM’s automated Mining Claim System, called the Legacy Rehost 2000 or LR2000.
- The mining claimant will file a detailed map of the location which will remain in the case file at the BLM state office.
- LR2000 will record the land description only to the quarter section.

## Mapping in GeoCommunicator

- After the mining claim is recorded in LR2000 it may be automatically recorded in GeoCommunicator after a few weeks.
- Not all mining claims that are in LR2000 can be converted into GeoCommunicator.
- The main reason they fail is that GeoCommunicator doesn’t contain a PLSS land description for the area.

## What is PLSS?

- PLSS stands for the Public Land Survey System.
- PLSS is a rectangular-based system that is used to survey the land.
- The following slide describes how the land is defined using the PLSS.

## Public Land Survey System

- A set of baselines and principal meridians that define rectangular divisions of land.
- Townships nominally 6 miles x 6 miles.
- Townships divided into 36 sections.
- Sections can be further subdivided in quarter quarters

## Defining Mining Claim Land Descriptions

- The next set of slides describe:
-  How the Mining Claims land descriptions are written in LR2000
- How the Mining Claims are mapped in NILS GeoCommunicator

## Nominal Location to Quarter Section

- #1- 06  0120N  0240W  006  NW

**Section 6**** of CO 06 T12N R24W**

_**Mer  Twp     Rng      Sec Subdiv**_

- #1- 06  0120N  0240W  006  SW,SE

- #1- 06  0120N  0240W  006    SW,NW,NE, SE

**Section 6: divided into quarters.**

*Mining Claims are **nominally **located to the quarter section.*

*Mining Claim #1 is defined by all the quarters it is located in.*

**Land Description**

## Nominal Location to Quarter Section

- #1- 06  0120N  0240W  006  NW

**Section 6**** of CO 06 T12N R24W**

_**Mer  Twp     Rng      Sec Subdiv**_

- #2- 06  0120N  0240W  006  NW

- Mining Claims #1 and #2 are located in the same quarter

- They are both defined to the quarter.

**Land Description**

- They both have the same land description.

## Nominal Location to Quarter Section

- #1- 06  0120N  0240W  006  SW, NW, NE

**Section 6**** of CO 06 T12N R24W**

_**Mer  Twp     Rng      Sec Subdiv**_

- #2- 06  0120N  0240W  006 NW

- Mining Claim #1 is partially located in the same quarter as Mining Claim #2.

- Since Mining Claim #1 is located in three quarters it appears to be bigger than Mining Claim #2 on the map even though they are relatively the same size.

**Land Description**

## Nominal Location to Quarter Section

- #1- 06  0120N  0240W  006  NW

**Section 6**** of CO 06 T12N R24W**

_**Mer  Twp     Rng      Sec Subdiv**_

**Land Description**

**Mining Claims may be nominally located to the section in GeoCommunicator if the section wasn’t subdivided into quarters.**

**Section 6**