Eastern Mojave Vegetation South Table Mountain Open Space (City of Golden), Jefferson County, Colorado.
 
Gazetteer

Query: G.N.I.S.

Located on the western slope of South Table Mountain, this open space includes the Lubahn Trail and connects to Jeffco Open Space’s Olivine Trail. It features volcanic rock formations, scenic overlooks, and educational geological features such as Castle Rock and the K-Pg boundary.

ACRES: 26.53

CLASSIFICATION: Natural Area

ATTRIBUTES: Cultural, Ecological, Active Visitation, Passive Visitation, Scenic

ACCESS AND TRAILS:

DESIGNATED PUBLIC ACCESS: Yes

TRAILS: Designated

KEY FEATURES:

  • Volcanic formations and panoramic views
  • Connection to larger Jeffco Open Space system
  • K-Pg boundary and historic fossil findings
  • Geological preservation
  • Scenic hiking and trail connectivity

MANAGEMENT NOTES:

  • Trail erosion control and maintenance required
  • Visitation limited to designated trails
  • Consider for CNHP PCA designation (B1: Irreplaceable Site With Global Significance)


Elevation: 6316ft, 1925m.

Articles that refer to this location:

  • Checklist Flora of Native and Naturalized Vascular Plants of Golden and Vicinity, Jefferson County, Colorado: STM OS; 
  • Field Notes: 13 May 2026; 
 

Area Plant Lists that contain this location:

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.

Anacardiaceae

Rhus trilobata Nutt. trilobata. Skunkbush Sumac (Obs) CC:5

Apiaceae

Selineae

Aletes acaulis (Torr.) J.M. Coult. & Rose. Stemless Indian Parsley (Obs) CC:7

Asclepiadaceae

Asclepias pumila (A. Gray) Vail. Plains Milkweed (Obs) CC:4

Asteraceae

Anthemideae

Artemisiinae

Artemisia frigida Willd. Prairie Sagewort (Obs) CC:4

Artemisia ludoviciana Nutt. Silver Wormwood (Obs) CC:4

Astereae

Astranthiinae

Townsendia grandiflora Nutt. Largeflower Townsend Daisy (Obs) CC:6

Chrysopsidinae

Heterotheca villosa (Pursh) Shinners. Hairy False Goldenaster (Obs) CC:3

Conyzinae

Erigeron divergens Torr. & A. Gray. Spreading Fleabane (Obs) CC:4

Erigeron tracyi Greene. Running Fleabane (Obs) CC:6

Gutiereziinae

Gutierrezia sarothrae (Pursh) Britton & Rusby. Broom Snakeweed (Obs) CC:3

Machaerantherinae

Grindelia subalpina Greene. Subalpine Gumweed (Obs) CC:4

Pentachaetinae

Ericameria nauseosa (Pall. ex Pursh) G. I. Nesom & G. I. Baird nauseosa. Rubber Rabbitbush (Obs) CC:3

Cardueae

Carduinae

Carduus nutans L. Nodding Plumeless Thistle (Obs) CC:0

Cichorieae

Scorzonerinae

Tragopogon dubius Scop. Yellow Salsify (Obs) CC:0

Eupatorieae

Brickellia californica (Torrey & A. Gray) A. Gray. California Brickelbush (Obs) CC:7

Heliantheae

Ambrosiinae

Ambrosia psilostachya DC. Western Ragweed (TAS) CC:3

Helianthinae

Helianthus pumilus Nutt. Little Sunflower (Obs) CC:4

Berberidaceae

Berberis. Barberry (Obs) CC:?

Boraginaceae

Oreocarya virgata (Porter) Greene. Miner"s Candle (Obs) CC:5

Phacelia hastata Douglas ex Lehm. Silverleaf Phacelia (Obs) CC:5

Brassicaceae

Alyssum simplex Rudolphi. European Madwort (Obs) CC:0

Descurainia incisa (Engelm.) Britton incisa. Mountain Tansymustard (Obs) CC:2

Erysimum capitatum (Hook.) Greene. Sanddune Wallflower (Oth) CC:5

Physaria vitulifera Rydb. Bull. Torrey Bot. Club 28: 278. 1901. Roundtip Twinpod (Obs) CC:6

Sisymbrium altissimum L. Tall Tumblemustard (Obs) CC:0

Thlaspi arvense L. Field Penny Cress (Oth) CC:0

Cactaceae

Cylindropuntia imbricata (Haw.) F. M. Kunth. Tree Cholla (Obs) CC:4

Opuntia macrorhiza Engelm. Western Pricklypear (Oth) CC:3

Opuntia polyacantha Haw. Plains Pricklypear (Obs) CC:5

Campanulaceae

Campanula rotundifolia L. Harebell (Oth) CC:5

Cannabaceae

Celtis reticulata Torr. Net-Leaved Hackberry (Obs) CC:6

Caprifoliaceae

Symphoricarpos Duhamel. Snowberry (Obs) CC:?

Symphoricarpos rotundifolius A. Gray. Roundleaf Snowberry (Oth) CC:5

Chenopodiaceae

Atriplex canescens (Pursh) Nutt. Four-wing Saltbush (Obs) CC:7

Euphorbiaceae

Chamaesyce glyptosperma (Engelm.) Small. Ribseed Sand Mat (Oth) CC:2

Euphorbia brachycera Engelm. Horned Spurge (Oth) CC:6

Euphorbia spathulata Lam. Warty Spurge, Spoonleaf Spurge (Oth) CC:6

Tragia ramosa Torr. Branched Noseburn (Obs) CC:6

Fabaceae

Oxytropis sericea Nutt. ex Torr. & A. Gray. White Locoweed (Oth) CC:5

Pediomelum tenuiflorum (Pursh) A. N. Egan. Slimflower Scurfpea (Obs) CC:5

Vicia L. Vetch (Obs) CC:?

Vicia villosa Roth. Hairy Vetch (Oth) CC:0

Fumariaceae

Corydalis aurea Willd. Scrambled Eggs (Oth) CC:5

Geraniaceae

Erodium cicutarium (L.) L'Her. ex Aiton. Hemlock-leav'd Crane's-bill (Obs) CC:0

Grossulariaceae

Ribes aureum Pursh. Golden Currant (Obs) CC:6

Ribes cereum Douglas. Wax Currant (Obs) CC:6

Lamiaceae

Marrubium vulgare L. Horehound (Obs) CC:0

Linaceae

Linum lewisii Pursh. Prairie Blue Flax (Obs) CC:4

Malvaceae

Sphaeralcea coccinea (Nutt.) Rydb. Cowboy's Delight (Obs) CC:4

Papaveraceae

Argemone polyanthemos (Fedde) G.B. Ownbey. Crested Prickly Poppy (Obs) CC:3

Plantaginaceae

Linaria dalmatica (L.) Mill. Dalmatian ToadFlax (Obs) CC:0

Penstemon virens Pennell ex Rydb. Front Range Beardtongue (Obs) CC:7

Polygonaceae

Eriogonum effusum Nuttall, Proc. Acad. Nat. Sci. Philadelphia. 4: 15. 1848. Spreading Buckwheat (Obs) CC:5

Eriogonum umbellatum Torr. umbellatum. Sulphur-Flower Buckwheat (Obs) CC:6

Rumex crispus L. Curley Dock (Obs) CC:0

Ranunculaceae

Clematis ligusticifolia Nutt. Western White Clematis (Obs) CC:4

Rosaceae

Amygdaloideae

Amygdaleae

Prunus americana Marshall. American Plum (Obs) CC:6

Prunus virginiana L. Chokecherry (Obs) CC:4

Maleae

Amelanchier alnifolia (Nutt.) Nutt. ex M. Roem. Saskatoon Serviceberry (Obs) CC:6

Dryadoideae

Dryadeae

Cercocarpus montanus Raf. Alder-Leaf Mountain Mahogany (Obs) CC:6

Rosoideae

Roseae

Rosa woodsii Lindl. Mountain Rose (Obs) CC:5

Santalaceae

Comandra umbellata (L.) Nutt. pallida (A. DC.) Piehl. Pale Bastard Toadflax (Obs) CC:5

Sapindaceae

Acer negundo L. Box Elder (Obs) CC:4

Ulmaceae

Ulmus pumila L. Siberian Elm (Obs) CC:0

Urticaceae

Parietaria pensylvanica Willd. Pennsylvania Pellitory (TAS+Obs) CC:1

Asparagaceae

Agavoideae

Agaveae

Yucca glauca Nutt. Soapweed Yucca (Obs) CC:4

Asparagoideae

Asparagus officinalis L. Asparagus (Oth) CC:0

Melanthiaceae

Toxicoscordion paniculatum (Nutt.) Rydb. Foothill Death Camas (Oth) CC:5

Poaceae

Bromeae

Bromus japonicus Thunb. Japanese Cheat Grass (Obs) CC:0

Bromus tectorum L. Cheat Grass (Obs) CC:0

Triticeae

Agropyron cristatum (L.) Gaertn. Crested Wheat Grass (Obs) CC:0

Total number of taxa: 71
Native Taxa:
(serif, italic, bold)		 53
Exotic Taxa:
(sans-serif, italic)		14
Nativity Undetermined:
(default font, italic) 		4
Listed Weeds:
Identified as Weed 		0
FQA, CC, n=68, Mean C: 3.7, FQI = 30.4
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:3:15:34 PM, 8/1/2026.