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Bureau of Land Management (BLM)

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Last update 16Mar14


BLM logo.png

The Bureau of Land Management (BLM) is a United States Department of the Interior agency that administers public land in the United States. Most of this land is located in the western states and Alaska. It's mission is to sustain the health, diversity and productivity of the public lands for the use and enjoyment of present and future generations.

BLM's regulatory role in recreation use (some national monuments, camping, boating, hunting, fishing, mounting biking, driving, etc.) and commercial use (mining of minerals, coal, gas, oil, forestry, grazing, etc.) of public land means that Wazers may navigate to these locations for business and fun.

In one 2006 report (1), the BLM manages over 82,000 miles of road and more than 16,000 miles of trails. Through discussion with BLM staff, this document has not been fully adopted and there is no existing BLM-wide standard on road naming, maintenance levels, and road classification. Yet, from this document, it is clear that BLM roads and land take a different approach than other public lands such as the US Forest Service (USFS) and National Park Service (NPS).

BLM Lands seem typically less structured, supervised, and maintained than USFS and NPS and therefore are trending toward a simpler three-tier road categorization.

Waze and BLM

Creating accurate and properly represented BLM landmarks and roads:

  • Benefit tourists and recreational users of NPS faculties,
  • Better enables commercial use of BLM lands,
  • Allows Wazers to more quickly find important landmarks, such as monuments, campgrounds, and visitor centers.

Functional Classification

BLM does not yet appear to have a consistent and approved functional classification schema; however, there is enough information to help consistency of editing. The best reference is a 2006 study and report on Roads and Trails Terminology that suggests three levels of classification for BLM roads. This should be sufficient for Waze editors to add consistency to how they represent BLM roads.

BLM roads 1.png

Description Suggested
Road Treatment
Road A linear route declared a road by the owner, managed for use by low-clearance vehicles having four or more wheels, and maintained for regular and continuous use. Street,
Primary Street
A linear route managed for use by four-wheel drive or high-clearance vehicles. Primitive roads do not normally meet any BLM road design standards. Dirt Road / 4x4 Trail
Trail A linear route managed for human-powered, stock, or off-highway vehicle forms of transportation or for historical or heritage values. Trails are not generally managed for use by four-wheel drive or high-clearance vehicles. (i.e., they are for motorcycles, ATVs, etc.) Do Not Map

Because BLM road maps are not all coordinated with the same functional classification, this information is not necessarily contained on BLM maps. Waze editors must use the above definitions along with personal local observation or images from the ground.

BLM roads 2.png

Some BLM road maps use a legend similar to that shown to the right. In this legend, roads are shown as "Open," "Closed," and "BLM Authorized Use." Waze editors should avoid mapping "closed" roads, map "open" roads, and mark "BLM Authorized Use" roads as private.

Editing Resources

State-specific Pages

State-specific editing resoruces including PDF maps and GIS data can be found at the following BLM web pages: Arizona, California, Colorado, Idaho, Montana, Nevada, New Mexico, Oregon, Utah, and Washington, Wyoming.

National Monuments

BLM's National Conservation Lands include 19 national monuments in western states of Arizona, California, Colorado, Idaho, Montana, New Mexico, Oregon, Utah, and Washington. See their National Monuments for details. These will be likely destinations for Wazers.

Similar Road Systems


(1) Roads and Trails Terminology Report, 2006

(2) Discussions with BLM GIS staff.