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“Bite-Size Bits of Local, National, and Global History”
Near Dubois in Fremont County, Wyoming — The American West (Mountains)
 

Flora at Union Pass

 
 
Flora at Union Pass Marker image. Click for full size.
Photographed By Barry Swackhamer, July 10, 2021
1. Flora at Union Pass Marker
Captions: An expanding forest; Sagebrush, bunchgrass and forbs.
Inscription.  Union Pass the cultural site must first have been Union Pass the natural site. As a natural site it commenced to produce vegetation and was afterwards inhabited by animals before it ever became attractive to man==for any purpose other than the thrill of exploration.
Development of present flora at Union Pass is an evolvement of recent time. The connection between conspicuous boulders and glaciers lately covering the area is mentioned elsewhere, but lichens still thriving grew on those boulders before all local ice had melted. Other flora, needing more favorable conditions, probably didn't attain a flourishing status until following the altithermal period causing cessation of glaciers--about 7,000 years ago.
The forest's development into a climax, a spruce-fir culmination, has been slowed by wildfires. But forest cover is now expanding through man's protective measures plus continuing evolution of soils as in the filling of ponds and marshes from sedimentation and organic matter.
Fortunately, Union Pass is in a park, not in the forest. From its view the foreground is covered on the drier, higher area by sagebrush, bunchgrasses,
Flora at Union Pass Marker image. Click for full size.
Photographed By Barry Swackhamer, July 10, 2021
2. Flora at Union Pass Marker
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and forms favoring semiarid conditions; low grounds support grassland communities, patches of willows and sedge meadows bordering ponds. Common plants are big sagebrush, shrubby cinquefoil, Idaho fescue, slender wheat grass, Indian paintbrush and lupine; along the streams grow willows, sedges, rushes, little red elephant, marsh marigold and globe mallow.
Southeast--toward the Wind River Range--Engleman Spruce-subalpine fir growth is in wetter areas and whitebark pine along hilltops and ridges. To the west--forward--is a younger growth of Engleman Spruce and lodgepole pine fringing expanding forests while within older lodgepole stands are in various stages of transition to the spruce-fir climax. Understory plants are grouse whortleberry, lupine, sedges and grasses.
 
Erected by U.S. National Forest Service.
 
Topics. This historical marker is listed in this topic list: Natural Features.
 
Location. 43° 28.857′ N, 109° 52.498′ W. Marker is near Dubois, Wyoming, in Fremont County. Marker can be reached from Union Pass Road (Forest Road 600) near Forest Road 534, on the right when traveling south. Touch for map. Marker is in this post office area: Dubois WY 82513, United States of America. Touch for directions.
 
Other nearby markers. At least 8 other markers are within walking distance of this marker. Union Pass (here, next to this marker); Three Waters Mountain (here, next to this marker); Wind River Range
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(here, next to this marker); Road through a Pass (here, next to this marker); The Ramshorn (here, next to this marker); Resources (here, next to this marker); The Rendezvous (here, next to this marker); Cultural Heritage (here, next to this marker). Touch for a list and map of all markers in Dubois.
 
 
Credits. This page was last revised on August 30, 2021. It was originally submitted on August 27, 2021, by Barry Swackhamer of Brentwood, California. This page has been viewed 56 times since then and 8 times this year. Photos:   1, 2. submitted on August 27, 2021, by Barry Swackhamer of Brentwood, California.

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Aug. 17, 2022