Eastern Mojave Vegetation Field Notes (Continued)  
 

Tom Schweich  

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Contents
Literature Cited
 When I first read the field notes of Annie Alexander and Louise Kellogg, I was fascinated by the descriptions they wrote about the places they went and the plants and animals they found there. By publishing my field notes on the Internet I hope to follow a little bit in their tradition.

 

 

   

2010

 

 

   

Thursday, April 21, 2010

 

Other articles: California Highway 58 near Tehachapi

Locations: Tehachapi.
Full Size ImageView of Tehachapi after a small snow storm in April 2010  

 

Other articles: Helendale Road near CA Hwy 58
Full Size ImageHelendale Road, near the north end at CA Hwy 58  

 

Other articles: Helendale Road near Helendale
Full Size ImageHelendale, as seen from the north.  

 

Other articles: U. S. Highway 66 near unknown road
Full Size ImageRoad Junction; National Trails Highway and unknown road.  

Turn off from National Trails Highway "Old US Highway 66" to an unknown road.

Other articles: Unknown Road at Stop P-5
Full Size ImageField Trip Stop P-5  

 

Other articles: Unknown Road on the bluff
Full Size ImageThe Mojave River and Helendale.  

 

Other articles: Unknown Road on the bluff
Full Size ImageThe Mojave River looking toward Wild Crossing  

 

Literature Cited:
- Reynolds, Robert E., and David M. Miller, 2010.

Other articles: Unknown Road on the bluff
Full Size ImageThe route north.  

The route through these little hills, as described in Reynolds & Miller (2010) is from north to south. I did it from south to north, so I went down this little canyon, If you're following the field trip guide, you'll come up the little canyon.

Other articles: Unknown Road near Stop P-4
Full Size ImageApproximate Location of Field Trip Stop P-4  

 

Other articles: Indian Trail near Indian Trail U. S. Highway 66 near Indian Trail
Full Size ImageIndian Trail Road off of Old US Hwy 66  

 

Other articles: Indian Trail near Mojave R.

Locations: Mojave River.
Full Size ImageThe Mojave River at Wild Crossing  

 

Other articles: Unknown Road near rd jct
Full Size ImageRoad along the Union Pacific tracks.  

Road along UP tracks gives access to Stop P-3.

Other articles: Unknown Road at unk rd 6 Unknown Road at unk rd 5
Full Size ImageRoad up to the top of the bluff.  

 

Other articles: Unknown Road near Stop P-3
Full Size ImageNear Field Trip Stop P-3  

 

Other articles: Unknown Road near Stop P-3
Full Size ImageNear Field Trip Stop P-3  

 

Other articles: Unknown Road at complex jct
Full Size ImageTake the middle road.  

If you're following the route in reverse order, i.e., from south to north, it can be hard to find the route down off the bluff. There are three routes north. The westernmost dead ends at a fine viewpoint. The easternmost goes into the housing development. Take the middle route shown here.

Other articles: Hinkley Road at Mojave R.

Locations: Mojave River.
Full Size ImageThe Mojave River at Hinkley Road  

 

Other articles: North 1st Avenue at Barstow Depot
Full Size ImageThe Barstow Depot.  

 

Other articles: Old California Highway 58 in Barstow
Full Size ImageWelding project beside the road.  

 

 

   

Friday, April 22, 2010

 

Locations: Zzyzx.
Full Size ImageMain building.  

 

Full Size ImagePresentation by Steve Rowland of UNLV  
 

 

   

Saturday, April 23, 2010

 

Other articles: Afton Road Shore of Lake Manix
Full Size ImageField Trip Stop on the shores of Lake Manix  

 

Other articles: Afton Road Shore of Lake Manix

Locations: Buwalda Ridge.
Full Size ImageBuwalda Ridge from Afton Road  

 

Other articles: Dunn Road at Stop Q-3
Full Size ImageField Trip Stop: Dunn Wash Gravel Quarry.  

 

Other articles: Dunn Road at Stop Q-3
Full Size ImageColl. No. 588, Mentzelia obscura
Full Size ImageColl. No. 588, Mentzelia obscura  

588  Mentzelia obscura H. J. Thomps. & J. E. Roberts. Pacific Blazingstar.

Dunn, San Bernardino County, California. On the edge of a quarry, off powerline road, at the end of Arrowhead Trail, 1.7 miles by road from Afton Road exit (Exit 221) of US Interstate 15, 1.2 miles by air northeast of Dunn, California. 35.0628N, 116.4336W. WGS 1984. Elev. 526 m. Flowers seem small.

Very similar to M. albicaulis except for seeds, which are rounded and rounded-papillate. Characters observed: Flower bract entire, light-colored, texture puberulent with long hairs; Petals 5 (not 8), < 8 mm (measured 5-6 mm); Fruit 15 mm long by 2 mm dia.; Seeds in multiple rows above the ovary; Seed angles rounded, surface rounded-papillate.

Other articles: Dunn Road at Stop Q-3
Full Size ImageDesert Iguana (Dipsosaurus dorsalis) in Lake Manix deposits.  

 

Other articles: Dunn Road at Stop Q-3
Full Size ImageSahara Mustard in the Lake Manix sediments  

 

Other articles: Unknown Road at Stop Q-4

Locations: New Dunn.
Full Size ImageUnion Pacific passes the site of Dunn.  

 

Other articles: Unknown Road at Stop Q-4
Full Size ImageLooking at root casts high in the section of the Afton Arm of Lake Manix  

 

Other articles: Unknown Road at Stop Q-4
Full Size ImageField Trip Stop at New Dunn  

 

Other articles: Unknown Road at Stop Q-5
Full Size ImageAir Photo showing Buwalda Ridge and Manix Wash  

 

Other articles: Unknown Road at Stop Q-5
Full Size ImageField discussion of the history of Lake Manix  

 

Other articles: Unknown Road at Stop Q-5
Full Size ImageThe Mojave River flows past Buwalda Ridge.  

 

Other articles: Unknown Road at Stop Q-5
Full Size ImageField discussion of the source of the Manix Ash in the Lake anix sediments  

 

Other articles: Unknown Road at Stop Q-5
Full Size ImageTwo fossil bones weathered out of Lake Manix sediments.  

 

Other articles: Unknown Road at Stop Q-5
Full Size ImageDiscussion of the depositional environment of the Lake Manix sediments.  

 

Other articles: Unknown Road at Stop M-1

Locations: Harvard Hill.
Full Size ImageStructure of south Harvard Hill  

 

Other articles: Unknown Road at Stop M-1
Full Size ImageDavid Miller shows the location of the thrust fault.  

 

Other articles: Unknown Road at Stop M-1
Full Size ImageView south across Mojave River from Harvard Hill.  

 

Other articles: Jeep Trail Columbia/Gem Mine Area.
Full Size ImageView north from Columbus/Gem mine.  

 

Other articles: Jeep Trail Columbia/Gem Mine Area.
Full Size ImageOverturned section of Barstow Formation at Columbus/Gem Mine  

 

Other articles: Jeep Trail outcrop of PST Eastern Mojave Geology near Columbus/Gem mine
Full Size ImageOutcrop of Peach Spring Tuff  

 

 

   

Sunday, April 24, 2010

 

Other articles: Power Line Road #2 (Middle) at M-5
Full Size ImageFluvial gravels at base of Barstow formation.  

 

Other articles: Mule Canyon Road at Emerald Basin
Full Size ImageWhat we saw in the Emerald Basin.  

 

Other articles: Mule Canyon Road at Emerald Basin
Full Size ImageGetting the explanation of Emerald Basin.  

 

Other articles: Mule Canyon Road at Emerald Basin
Full Size ImageEmerald bed in the Barstow Formation  

The Emerald bed of the Barstow Formation. The mineral making the green color is Celadonite, a greenish mineral of hydrated iron, magnesium, potassium silicate containing small amounts of aluminum, calcium, sodium, and numerous trace elements.

Other articles: Mule Canyon Road near Little Borate
Full Size ImageGeneral view of Little Borate  

 

Other articles: Mule Canyon Road near Little Borate
Full Size ImageChevron folds in Barstow Formation at Little Borate  

 

Other articles: Mule Canyon Road at Tin Can Alley
Full Size ImageView down Tin Can Alley.  

 

Other articles: Owl Canyon Road at Camp 28
Full Size ImageDiscussion of Barstow Formation in Camp Site #28  

 

Other articles: Owl Canyon Road at Camp 28
Full Size ImageBarstow Formation opposite Camp Site #28  

 

Other articles: Owl Canyon Road at Camp 28
Full Size ImageStromatolites in the Barstow Formation  

 

Other articles: Owl Canyon Road at camp host

Locations: Owl Canyon Campground.
Full Size ImageThe Owl at Owl Canyon Campground.  

 

Other articles: Irwin Road north of Barstow
Full Size ImageBarstow as seen from Irwin Road  

 

Other articles: Unknown Road at Field Trip Stop
Full Size ImageStromatolitic limestone  

 

Other articles: Stoddard Valley Road at Stop M-12
Full Size ImageLooking north from Daggett Ridge  

 

Other articles: Stoddard Valley Road at Stop M-12 Eastern Mojave Geology on Daggett Ridge
Full Size ImageField Trip Stop M-12  

 

Other articles: Stoddard Valley Road at Stop M-12 Eastern Mojave Geology on Daggett Ridge
Full Size ImageField Trip Stop M-12  

 

Other articles: Stoddard Valley Road at unk rd 3 Unknown Road at Stoddard Vy
Full Size ImageIntersection of Oxford and Gloucestor  

 
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If you have a question or a comment you may write to me at: tas4@schweich.com I sometimes post interesting questions in my FAQ, but I never disclose your full name or address.  


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Date and time this article was prepared: 10/27/2017 8:33:09 PM