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I-15 Nevada - August 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 = None Seen. 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. 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.
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, starting at California border
Survey April 2, 2005.
(PM markers, starts at California border) Notebook 197,
0 - NS - Primm, Nevada
1 - NS
2 - RS rare.
3 - RS scattered.
4 - NS
5 - NS
6 - NS
7 - NS
8 - RS scattered.
9 - RS scattered to thick, DES scattered out 50 feet.
10 - DES scattered out 25 feet.
11 - DES solid to 25 feet.
12 - RS rare.
13 - RS rare.
14 - RS rare.
15 - RS rare to scattered.
16 - RS very rare.
17 - RS very rare.
18 - RS very rare.
19 - RS rare.
20 - RS very rare.
21 - NS - Mojave Yucca.
22 - NS
23 - NS
24 - NS
25 - RS scattered.
Inspection Station, closed - Exit 25.
26 - RS rare.
27 - RS rare.
28 - DES scattered.
29 - DES scattered.
30 - NS
31 - RS very rare.
Edge of city.
32 - RS very rare.
33 - RS rare - Pahrump Exit 34
34 - DES scattered.
City of Las Vegas begins
35 - NS
36 - NS
37 - NS - Tropicana Avenue
38 - NS - Flamingo Road
39 - NS
40 - NS
41 - NS
42 - NS
43 - NS
44 - NS
45 - NS
46 - NS
47 - NS
48 - NS
End City of Las Vegas, Craig Road
49 - NS
50 - NS - Lamb Blvd.
51 - RS in ditches, scattered.
52 - RS scattered.
53 - DES scattered out 200 feet.
54 - RS scattered - Speedway Blvd.
55 - DES scattered out 1/4 mile.
56 - DES scattered out 1/4 mile, wash.
57 - RS scattered in badlands.
58 - NS - Nellis AFB exit
59 - NS
60 - RS scattered.
61 - RS solid.
62 - RS scattered.
63 - RS rare.
64 - RS scattered. rare to scattered - US 93 north
65 - RS scattered. scattered to thick.
66 - RS scattered.
67 - DES scattered out 50 feet.
68 - DES scattered out 50 feet.
69 - DES scattered out 50 feet.
70 - RS rare- sandstone cliffs
71 - NS
72 - NS - Hilaria grassland?
73 - NS
74 - NS
Moapa Indian Reservation
75 - NS
76 - NS
77 - RS rare.
78 - RS scattered.
79 - RS scattered - Hilaria.
80 - DES scattered out 50 feet.
81 - DES scattered out 50 feet.
82 - DES scattered out 20 feet.
83 - DES scattered out 100 feet.
End Indian Reservation
84 - DES scattered out 100 feet.
85 - DES scattered out 100 feet.
86 - NS
87 - DES scattered out 100 feet, solid at rest stop.
88 - DES scattered out 20 feet.
89 - DES rare - Badlands.
90 - RS very rare - Badlands.
91 - NS
92 - DES scattered out 50 feet - Badlands.
93 - NS
Junction Nevada 169
94 - NS - Badlands
95 - RS rare.
96 - DES scattered out 200 feet on plateau.
97 - DES solid at truck parking, scattered out 1/4-one mile.
98 - DES solid to 1/4 mile.
99 - DES scattered out 100 feet.
100 - DES solid out 100 feet.
101 - DES scattered out 20 feet.
102 - DES solid out 100 feet, in places scattered.
103 - DES scattered out 100 feet.
104 - DES solid out 1/2 mile - Joshua trees.
105 - DES scattered out 100 feet.
106 - DES scattered out 100 feet.
107 - DES scattered out 100 feet.
108 - DES scattered out 100 feet.
109 - DES scattered out 100 feet.
110 - DES scattered out 100 feet.
111 - NS - Off plateau.
112 - NS - Badlands.
113 - RS scattered.
114 - RS solid
115 - RS solid,
116 - RS scattered - Badlands.
117 - NS - Badlands.
118 - RS scattered.
119 - RS scattered.
120 - (Mesquite exit)
121 - DES scattered.
122 - RS scattered to rare.
123 - NS
124 - NS - Arizona border
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