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.
from 2005, May 17-19, NORTH TO SOUTH:
US 95 California Nevada border, no mustard.
US 95 looking northward across the California/Nevada border.
No mustard. What is Nevada doing right?
US 95 on Nevada side of the border, no mustard. What is the Nevada DOT doing?
US 95 at California border. Oh, no, there's mustard lurking underneath a creosote bush!
US 95 - California side of the border, mustards along the roadside and into the desert.
What is Caltrans doing wrong? ... Just wait until you go only two miles south into the State of California..when you hit...
"The Great Wall of Mustard" US 95 San Bernardino County PM 71 (to PM 78), starts 2 miles from the Nevada border and is 14-20 miles north of I-40. "No Smoking!!". Photo 5/19/2005
"The Great Wall of Mustard" US 95 San Bernadino County PM 71. Takes your breath away!
The native perennial Datura seems to be one of the few native desert plants that can grow on an equal basis within the exotic invasive mustard. US 95 San Bernardino County PM 74.
US 95 San Bernardino County PM 74. When the mustards gets as thick along the roadsides as at the "Great Wall of Mustard", it will then shortly thereafter be marching out into the desert.
US 95 PM 44 San Bernardino County, mustards are still within 50 feet of the roadsides and not in the desert yet.
US 95 San Bernardino County PM 35, 24 miles north of Vidal Junction. Mustards thick along road and starting to spread into the desert. Photo 5/18/2005.
US 95 San Bernardino County PM 35 showing density of mustards in desert, the infestation starting to move off the roadsides into the creosote bush habitat.
US 95 PM 30 San Bernardino Co., the mustard solid out into the desert.
US 95 San Bernardino County PM 20, 9 miles south of Vidal Junction, when the mustard gets this thick along the roadsides, it starts moving out into the desert. Notice that Caltrans scraped this ditch very recently. Photo. 5/18/2005
US 95 PM 18 San Bernardino County, roadsides solid but only scattered plants in the desert
US 95 PM 8 San Bernardino County, one mile south of Vidal Junction, along roadside but not out into the desert yet.
US 95 PM 32 Riverside County, Colorado Indian Reservation, fortunately no mustard yet.
California Highway 95 - May 2005 - Raw data.
Results of a 70 mph windshield survey (or whatever the local
speed limits were), of Sahar 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 iwth 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)
NEVADA to California border, southbound
Survey 5/19/2005, notebook 194, pages 19-20.
(Post Miles, Start 6 miles north of California border, in
6 - Nevada - RS, rare.
5 - RS, rare.
4 - RS, scattered.
3 - RS, rare to occasional.
2 - RS, rare to occasional, scattered.
1 - RS, rare to occasional.
0 - RS, occasional.
Nevada-California border -
SAN BERNARDINO COUNTY, south from Nevada border
Survey 5/17/2005, notebook 194, pages 19-20 & notebook
193, pages 35-40.
Survey starts at Nevada/California border (PM 80.4)
80 - RS,
solid, 80.4 = border.
79 - RS, solid,
78 - RS, End "Great Wall", DES scattered.
77 - RS, "Great Wall", DES scattered.
76 - RS, "Great Wall", DES scattered.
75 - RS, "Great Wall", DES scattered.
74 - RS, "Great Wall", DES scattered.
73 - RS, "Great Wall", DES scattered.
72 - RS, "Great Wall", DES scattered.
71 - RS, "Great Wall", DES scattered.
70 - RS thick, DES rare.
69 - RS thick, DES rare.
68 - RS thick, DES rare.
67 - RS thick, DES rare.
66 - RS thick, DES rare.
65 - RS thick, DES rare.
64 - RS solid, DES scattered.
63 - RS scattered.
62 - RS solid, DES scattered.
61 - DES scattered out 200 feet.
60 - RS scattered.
59 - RS rare.
58 - RS rare.
Junction Interstate 40 (PM 57.7)
57 - DES scattered, RS scattered.
56 - DES scattered, RS scattered.
55 - DES scattered, RS scattered.
54 - DES scattered, RS scattered.
53 - RS scattered.
52 - RS solid.
51 - DES scattered, within 200 feet of road.
50 - RS scattered.
49 - DES scattered, within 200 feet of road.
48 - DES scattered, within 200 feet of road.
47 - DES scattered, within 50 feet of road.
46 - DES scattered, within 50 feet of road.
45 - DES scattered, within 50 feet of road.
44 - DES scattered.
43 - DES scattered.
42 - DES scattered - Summit
41 - RS solid, DES rare.
40 - RS thick to occasional.
39 - DES scattered out to one mile.
38 - DES scattered out to 100 feet.
Havasu Lake Road
37 - DES scattered out to 100 feet.
36 - DES scattered out to 100 feet.
35 - DES scattered and solid in places.
34 - DES scattered and solid in places.
33 - DES scattered and solid in places.
32 - DES scattered and solid in places.
31 - DES scattered and solid in places.
30 - DES scattered and solid in places, out for miles.
29 - DES scattered - WASH.
28 - DES scattered.
27 - RS solid, DES goes out 50 feet.
26 - RS solid, DES scattered.
25 - RS solid, DES scattered.
24 - RS solid, DES scattered goes out 100 feet.
23 - RS thick.
22 - RS thick.
21 - RS thick, DES scattered.
20 - RS thick, DES scattered.
19 - RS thick, DES scattered.
18 - RS thick, DES scattered.
17 - RS thick, DES scattered.
16 - RS thick, DES scattered - WASH
15 - RS thick, DES scattered.
14 - RS thick, DES solid out to one mile.
13 - RS thick, DES scattered.
12 - RS thick, DES scattered.
11 - RS thick, DES scattered.
10 - RS thick, DES scattered.
Junction California 62, V idal Junction
9 - RS scattered.
8 - RS solid.
7 - RS solid.
6 - RS solid.
5 - RS solid, DES scattered.
4 - RS scattered, DES scattered.
Ghost Town of Vidal, and Railroad crossing
3 - RS scattered.
2 - RS scattered.
1 - RS scattered.
0 - DES scattered.
RIVERSIDE COUNTY LINE
Start San Bernardino/Riverside County line (PM 36.19)
36 - RS, DES scattered
35 - DES scattered
34 - RS scattered. (ColoradoRiver Indian Reservation)
33 - RS very rare, a single plant.
32 - RS scattered.
31 - NS - Riparian, wash, barrier to north-south movement.
30 - NS
29 - RS scattered.
28 - RS scattered.
27 - RS scattered - Cell phone tower.
26 - RS scattered.
25 - DES scattered to thick.
24 - NS - Riparian, next to Colorado River.
23 - RS scattered, thick in places.
22 - DES scattered
21 - RS occasional - Riparian.
20 - RS occasional, plus native plantago!
19 - RS occasional.
18 - RS occasional.
17 - NS - Mesquite.
16 - RS scattered
Blythe Intaglios, ancient Native American made figures in desert, 95 to 167 feet long.
15 - RS scattered.
14 - NS - Riparian
13 - NS - Riparian.
12 - NS - Riparian.
11 - RS thick in places. (Good road, to Colorado River)
10 - RS scattered in riparian.
9 - NS - Riparian salt cedars.
8 - RS rare in patches.
7 - NS - Riparian.
6 - NS - Ag. lands in alfalfa.
5 - NS - Ag. lands in alfalfa.
4 - NS - Ag. lands in alfalfa.
3 - NS - Ag. lands in alfalfa.
2 - NS - Ag. lands in alfalfa.
1 - NS - Ag. lands in alfalfa.
0 - NS - Ag. lands in alfalfa.
End Junction Interstate 10, Blythe
Updated April 21, 2016. Back to Craig Dremann's main Contents page.
- BACK TO MAIN MUSTARD MUSTARD PAGE