43 CFR § 3832.41 - What is a tunnel site?

---
identifier: "/us/cfr/t43/s3832.41"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "43 CFR § 3832.41 - What is a tunnel site?"
title_number: 43
title_name: "Public Lands: Interior"
section_number: "3832.41"
section_name: "What is a tunnel site?"
chapter_name: "BUREAU OF LAND MANAGEMENT, DEPARTMENT OF THE INTERIOR"
subchapter_number: "C"
subchapter_name: "MINERALS MANAGEMENT (3000)"
part_number: "3832"
part_name: "LOCATING MINING CLAIMS OR SITES"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "30 U.S.C. 22  43 U.S.C. 2, 1201, 1457, 1740, 1744."
regulatory_source: "68 FR 61069, Oct. 24, 2003, unless otherwise noted."
cfr_part: "3832"
---


# 3832.41 What is a tunnel site?

A tunnel site is a subsurface right-of-way under Federal land open to mineral entry. It is used for access to lode mining claims or to explore for blind or undiscovered veins, lodes, or ledges not currently claimed or known to exist on the surface.