Eastern Mojave Vegetation Mountain Pass, San Bernardino County, California.
 
Gazetteer

Query: G.N.I.S.

See also: Clark Mountain. Mescal Spring Canyon.

See also: Mescal Range.

Pass on Interstate 15, just south of the Clark Range. Location of Molycorp's rare earth mine.


Elevation: 4728ft, 1441m.

Articles that refer to this location:

 

Full Size Image
Mountain Pass Mine in 1991.
Full Size Image
View of the Unocal processing plant at the Mountain Pass Rare Earth Mine

Species collected at or near this location.

This list summarizes plants collected or observed at this specific, named location. It does not include plants collected or observed at nearby named or unnamed locations. It may be more instructive to use the Area Lists that contain this location.

  • TAS – The plant was collected by Tom Schweich.
  • Oth – The plant was collected by someone, but not Tom.
  • Obs – The plant was observed, but not collected.

Asteraceae

Astereae

Pentachaetinae

Ericameria linearifolia (DC.) Urb. & J. Wussow. Narrowleaf Goldenbush (Oth) CC:?

Ericameria nauseosa (Pall. ex Pursh) G. I. Nesom & G. I. Baird hololeuca (A.Gray) G.L.Nesom & G.I.Baird. Rubber Rabbitbush (Oth) CC:?

Cactaceae

Escobaria vivipara (Nutt.) Buxb. deserti (Engelm.) D. R. Hunt. Desert Beehive Cactus (Oth) CC:?

Lamiaceae

Salvia dorrii (Kellogg) Abrams pilosa (A. Gray) J. L. Strachan & Rev. Purple Sage (Oth) CC:?

Asparagaceae

Agavoideae

Agaveae

Agave utahensis (Engelm.) Gentry. Utah Agave (Oth) CC:?

Interesting collections made at or near this location:

  • Salvia dorrii (Kellogg) Abrams
    • H. E. McMinn 3144 5/1/1933
Total number of taxa: 5
Native Taxa:
(serif, italic, bold)
4
Exotic Taxa:
(sans-serif, italic)
0
Nativity Undetermined:
(default font, italic)
1
Listed Weeds:
Identified as Weed
0
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:3:15:18 PM, 8/1/2026.