Eastern Mojave Vegetation U. S. Highway 20  
 

Tom Schweich  

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Topics in this Article:
Yellowstone National Park
 (No Preface)

 

 

Other articles:
• U. S. Highway 101:   at Newport;

Locations: Newport.  

Newport

Junction: US Highway 101

 

 

Other articles:
• Field Notes:   1 Oct 2022;

Locations: Albany.  

Albany

 

Other articles:
• U. S. Interstate 5:   Exit 233 at US Hwy 20;  

Junction: US I-5.

   

Lebanon

 

   

Sweet Home

 

Other articles:
• Field Notes:   near Hse Rk CG;
Full Size ImageSaplings growing from an old trunk.  

House Rock Campground

On NF Road 2044

Other articles:
• Field Notes:   at Hackleman OGG;
Full Size ImageTrail closed because of hazard trees.  

Hackleman Old Growth Grove

 

Other articles:
• Oregon Highway 126:   at Santiam Jct.;  

Junction: Oregon Highway 126, to Eugene.

 

Cross Pacific trail, the actual Santiam Pass is a short distance to the south.

 

Pass by Black Butte

Other articles:
• Oregon Highway 242 “McKenzie Highway”:   at US 20;  

Junction: Oregon Highway 242 “McKenzie Highway”

Other articles:
• Field Notes:   28 Sep 2022;
Full Size ImageBroken Top and North Sister, from Sisters.  

View of Sisters

 

Other articles:
• Field Notes:   28 Sep 2022;

Locations: Sisters.  

Sisters

 

Other articles:
• Oregon Highway 126:   at US 20;  

Junction: Oregon Highway 126, east to Redmond and Prineville.

Other articles:
• US Highway 97:   at US Hwy 20;  

Junction: US Highway 97

 

 

Other articles:
• Field Notes:   27 Sep 2022;

Locations: Bend.  

Bend

 

 

 

Other articles:
• U. S. Highway 395:   at US Hwy 20 West;  

Riley

Junction US Hwy 395 South

 

 

Other articles:
• Oregon Highway 78:  at US 20, US 395;  

Burns

Junction: Oregon Highway 78, to Burns Junction on US Highway 95, and also Oregon Highway 205 to Malheur National Wildlife Refuge.

Other articles:
• U. S. Highway 395:   at US Hwy 20 East;  

Junction US Hwy 395 North

 

   

Juntura

 

Other articles:
• U. S. Highway 20:   at East end of Malheur Gorge;

Locations: Malheur Gorge.  

The Malheur Gorge is west (down) from here.
  Junction Pole Creek Road

Literature Cited:
- Hooper, P. R., G. B. Binger, and K. R. Lees., 2002.

Other articles:
• Steens Mountain Loop Road:  50001;  

Hooper, Binger and Lees (2002) used geochemical data to show that the Steens Basalt correlates with the Lower Pole Creek unit of the Basalt of Malheur Gorge. This means that the present Steens Mountain was over or near to the Yellowstone hot spot at 16 M.a.

Other articles:
• U. S. Highway 20:   at West end of Malheur Gorge;

Locations: Malheur Gorge.  

The Malheur Gorge is to the west (up).
  Harper

 

   

Vale

 
  Junction: Oregon Highway 201, south along the Snake River and eventually turning east into Idaho.

 

 

Locations: Nyssa.  

Nyssa

 
  Oregon above ...
Idaho below …

Other articles:
• U. S. Highway 95:  20000;  

Junction: US Highway 95, north to US I-84.

Other articles:
• US I-84:   at Exit 26;  

Junction: US Interstate 84, at its Exit 26.

The routes of US Highways 20 and 26 follow I-84 for three miles, then exit east into Boise.

Other articles:
• US I-84:  Exit 54;  

Junction: US Interstate 84

Other articles:
• US I-84:   at Exit 95;  

Junction: US Interstate 84, at its Exit 95.

 

 

Locations: Camas Prairie.  

Camas Prairie

Fairfield, Idaho, in the Camas Prairie.

Other articles:
• Idaho Hwy 75:   at US 20;  

Junction: Idaho Highway 75, north into the Sawtooth …

Other articles:
• US Hwy 26:   near Carey;
• U. S. Highway 93:  at US Hwy 20;  

Junction: US Highway 26, US Highway 93, south to Shoshone.

 

   

Carey

 

 

 

Other articles:
• Field Notes:   3 Sept 2018;

Locations: Craters of the Moon National Monument.
Full Size ImageOverlook of Craters of the Moon.  

Craters of the Moon National Monument

Full Size Image
Inferno Cone.
Full Size Image
Landscape of basalt volcanic field.
 

Full Size ImageEntry into Arco.  
 

 

 

Other articles:
• Field Notes:   3 Sept 2018;

Locations: Arco.
Full Size ImageNumber Hill in Arco.  

Arco

Junction: US Highway 93, north to Challis.

 

Junction: Idaho Highway 33, north then east.

Other articles:
• US Hwy 26:   at US 20 E;  

Junction: US Highway 26, southeast to I-15 at Blackfoot.

Locations: Middle Butte.
Full Size ImageMiddle Butte south of US Highway 20.  

Middle Butte south of US Highway 20.

Locations: East Butte.
Full Size ImageEast Butte south of US Highway 20.  

East Butte south of US Highway 20.

 

 

Other articles:
• Interstate 15:   at Exit 118;

Locations: Idaho Falls.  

Idaho Falls

Junction: US Interstate 15, West Broadway, to US Highway 26.

US Highway 20 is concurrent with US Interstate 15 for one Exit north.

 

Junction: US Interstate 15, Grandview Drive

US Highway 20 is concurrent with US Interstate 15 for one exit south.

 

Other articles:
• Golden Checklist Flora:  Phlox longifolia, Nuttall, 1834;

Locations: Henrys Fork.  

Rexburg

Junction: Idaho Highway 33, “Sacajawea Historic Byway,” west across Henrys Fork, and west eventually leading to Camas Prairie.

   

Sugar City

 
 

Junction: Idaho Highway 33, east to Pierre's Hole

   

St Anthony

 
 

Ashton

 

Locations: Henrys Fork.  

Cross Henrys Fork

Literature Cited:
- Neukampf, J., B.S. Ellis, O. Laurent, L.K. Steinmann, T. Ubide, M. Oeser, T. Magna, S. Weyer, and O. Bachmann, 2021.  

Neukampf, et al. (2020) examined Lithium and Lithium isotope abundances in plagioclase crystals of the Mesa Falls Tuff, to show that as a minimum a few tens of minutes elapse between the onset of eruptive volatile degassing of the magma and quenching, suggesting rapid shifts from quiescence to explosivity. Their cited location of the crystal collection was in a roadcut along US Highway 20, just north of Henrys Fork.

 

Junction: Idaho Highway 87

  Idaho above …
Montana below …

Other articles:
• West Entrance Road:  West Entrance;  

Junction: West Entrance Road
Yellowstone National Park below …

 

 

 

Locations: Yellowstone National Park.  

Yellowstone National Park

U. S. Highways do not carry signage in Yellowstone National Park.

Other articles:
• East Entrance Road:  205000;  

Yellowstone National Park above …

Junction: East Entrance Road

 

   

Cody

 

Other articles:
• Field Notes:   15 Aug 2011;
Full Size ImageBig Horn River in Thermopolis
Full Size ImageHot springs terrace beside the Big Horn River  

Junction: Park St., across the Big Horn River to the hot springs.

 

 

Other articles:
• Field Notes:   15 Aug 2011;

Locations: Thermopolis.
Full Size ImageBNSF depot in Thermopolis  

Thermopolis

Junction:
  • Broadway St.
  • Wyoming Highway 120
  •  

     

    Other articles:
    • US Hwy 26:   in Shoshoni;  

    Shoshoni

    Junction: US Highway 26, west to Riverton and then Jackson, or jointly east to Caspar.

     

       

    Caspar

     

    Other articles:
    • US Interstate 25:   at Exit 185;  

    Junction: Curtis Street, access to US Interstate 25.
      Wyoming above …
    Nebraska below …
      Nebraska above …
    Iowa below …
      Iowa above …
    Illinois below …
      Illinois above …
    Indiana below …
      Indiana above …
    Ohio below …
      Ohio above …
    Penmsylvania below …
      Pennsylvania above …
    New York below …
      New York above …
    Massachusetts below …

     

       

    Boston

     
      Junction: Massachusetts Route 2
    If you have a question or a comment you may write to me at: tomas@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: 11/3/2024 5:34:10 PM