2005 California Desert Exotic Mustard Roadside Survey

California Highway 78 - May 2005 - Raw data.
Riverside & Imperial Counties

Surveyed and Copyright © 2005 by Craig Dremann

Box 361, Redwood City, CA 94064 - (650) 325-7333


Intellectual Property Notice: You are welcome to reprint this data, for your own personal use. However, if you want to distribute, reproduce, modify or incorporate this data into another product including maps, you need to obtain a license for use. Craig Dremann owns the title, copyright, and other intellectual propertiy rights on this data, and the data is licensed, not sold. Reprinting the data or utilizing it for economic purposes including projects funded by grants, without obtaining a license, the user agrees to pay liquidated damages of $100 per mile. Use of this web site constitutes your acceptance of this agreement, and Craig Dremann reserves the right to change the terms and conditions under which it offers this site. - Licenses are available for use of the data by researchers, universities, or agencies at $8 per mile.




PICTURES



Cal. 78 PM 28.5 Imperial County west of dunes--"It's coming!"


Cal. 78 PM 60 Imperial County, mustard in ditch just wanting to colonize BLM land and Chocolate Mountains.

 



California Highway 78 - May 2005 - Raw data.

Results of a 70 mph windshield survey (or whatever the local speed limits were), of Sahara Mustard (Brassica tournefortii): Either not present; is present along roadsides or in medians; or is outside of the roadside to the fence line or has moved from the roadsides to infest adjacent land.

NS = No Sahara Mustard was seen along roadside ditches; or if divided highway, also not seen in the roadside median, or in lands adjacent to the road.

RS = Road Sides were infested with Sahara Mustard. MED = In divided highways, in medians.

DES = Sahara Mustard has moved from the roadsides into the desert, agricultural areas, or other lands adjacent to the roadsides. FL = Only found along the highway cyclone-fence line, but is far enough off the roadside to pose an immediate problem for the lands adjacent to the fences. At the time of the survey, did not appear to be moving off the fence line yet.

SPECIES SURVEYED for:

BT = Brassica tournefortii or Sahara Mustard

PM = Post miles along highways, and numbers indicate the averages found not just at each post mile, but for 1/2 mile on either side of the post mile marker.

(Landmarks and other notes on other exotics or native plants will be in parentheses)


RIVERSIDE COUNTY, start at Junction I-10, southbound (PM 16.10)

Survey 5/17/2005, notebook 193, pages 41-45.

(PM markers)

16 -
15 -
14 -
13 -
12 -
11 -
10 -
9 -
8 -
7 -
6 -
5 -
4 -
3 -
2 -
1 -
0 -

Imperial County line


IMPERIAL COUNTY, southbound (start PM 78.84)

78 -
77 -
76 -
75 -
74 -
73 -
Mitchell Camp Road
72 -
71 -
70 -
69 -
68 -
67 -
66 -
65 -
64 -
63 -
62 -
61 -
60 -
59 -
58 -
57 - (Inspection Station Immigration)
56 -
55 -
54 -
53 -
52 - (Ogilby Road)
51 -
Match line, new road
50 -
49 -
48 -
47 -
46 -
45 -
44 -
43 -
42 -
41 - (Town of Glamis)

Sand dunes start
40 -
39 -
38 -
37 -
36 -
35 - (Gecko Road - sand dunes end)
34 -
33 -
32 -
31 -
30 -
29 -
28 -
27 -
26 - (County Road S-33)
25 -
24 -
23 -
22 -
21 -
Junction Cal. 115
20 -
19 -
18 -
17 -
16 - (Junction 111)

Town of Brawley starts
15 -
14 -
13 -
12 -
11 -
10 -
9 -
8 -
7 -
6 -
5 -
4 -
3 -
2 -
1 -
0 - Town of Brawley

Junction of Cal. Hwy. 86



Updated September 7, 2005 - BACK TO MAIN PAGE