Lassen County Weed Management Area Project Map, Alturas Field Office, Bureau of Land Mangement California

Oak Trees at Fort Ord National Monument.

U.S. DEPARTMENT OF THE INTERIOR

BUREAU OF LAND MANAGEMENT

Cow grazing near a stand of Juniper trees

California



BLM>California>Alturas>Lassen County Weed Management Area Project Map

Print Page

Alturas Field Office

Lassen County Weed Management Area Project Map

Alturas Field office weed management area in Lassen County. For more information regarding the information in this map; contact the Alturas Field Office at 530-233-4666

Property Description
The Lassen County WMA Project encompasses 757,094 acres in Lassen County, California within the Alturas Field Office boundary. 110,187 of these acres are public lands managed by the BLM. The vast majority of this land is Juniper and Sagebrush rangeland.

2011 Lassen County BLM Property Weed Inventory:

45,700 acres of BLM land in Lassen County were inventoried for noxious weeds during the 2011 field season. Below is a summary of the weed sites found and treated.

Table 1 - Lassen County Weed Points
# Sites	Weed Name	Acres
1	Perennial Pepperweed	0.001
2	Russian Knapweed	0.055
4	Dyers Woad	2.128
5	Mediterranean Sage	0.042
5	Spotted Knapweed	0.054
9	St Johnswort	1.120
10	Canada Thistle	0.787
15	Hoary Cress	5.993
24	Yellow Starthistle	0.546
47	Squarrose Knapweed	4.314
61	Houndstongue	14.406
266	Scoth Thistle	83.448
449	Totals	112.894

Table 2- 2011 Lassen County Weed Lines
# Sites
Weed Name
Acres
1
Scotch Thistle
6.162
2
Squarrose Knapweed
2.225
4
Houndstounge
8.335
7
Totals
16.721

Table 3- Lassen County Weed Polygons
# Sites
Weed Name
Acres
2
Houndstongue
144.825
10
Scotch Thistle
203.751
12
Totals
348.578

Altogether 468 weed sites were inventoried totaling 477.93 acres.