Olympic Mts.

Potentilla fruticosa, Marmot Pass

Potentilla fruticosa with Mt. Deception - Mt. Mystery ridge in the background.

Photo from the ridge above Marmot Pass, Ned Lowry, 1975

The Olympic Mountains are primarily sedimentary with some volcanic basalt at lower elevations (see USDA data)..  The mountains are high enough to block cloud movement from the Pacific Ocean.  The western side of the mountains is in one of the areas of greatest precipitation in the continental United States, with an annual rainfall of about 90 in. at the coast to over 200 in at higher elevations; the northeast side, in the rain shadow, is one of the driest areas on the West Coast with 15 in. at Sequim and 10 in. just north of Sequim (see rainfall map). 

There are at least 8 endemic plants in the Olympic Mountains, several are shown below.  The best alpine plants occur in the dryer alpine zones on the east and north sides of the Olympics.  The best known of these is the Mt Townsend and Buckhorn/Marmot Pass areas of the east side.  These are accessible by trail only.  The areas from Mt Angles to Deer Park are accessible by road from the Port Angles area.

Scanned slide, 1987, Ned M. Lowry Campanula rotundifolia 'Ned's White"

Mt. Townsend

Scanned slide, 1975, Ned M. Lowry Castilleja parviflora v. olympica

Marmot Pass

Olympic endemic

Scanned slide, 1987, Ned M. Lowry

Campanula piperi

Mt. Townsend

Olympic endemic

Scanned slide, 1996, Ned M. Lowry

Campanula piperi White form

Mt. Townsend

Olympic endemic

 

Scanned slide, 1975, Ned M. Lowry Collomia debilis v. larsenii

Marmot Pass

Scanned slide, July 2001, Ned M. Lowry Delphinium glareosum

Mt. Angeles

Scanned slide, 1994, Ned M. Lowry Douglasia laevigata v. ciliolata

Mt. Townsend

Scanned slide, July 2001, Ned M. Lowry Elmera racemosa v. racemosa

Mt. Angeles

Scanned slide, 1987, Ned M. Lowry

Epilobium latifolium

Mt. Townsend

Scanned slide, July 2001, Ned M. Lowry Petrophytum hendersonii

Mt. Angeles

Olympic endemic

Scanned slide, July 2001, Ned M. Lowry Senecio neowebsteri

Mt. Angeles

Olympic endemic

Scanned slide, 1994, Ned M. Lowry Synthyris pinnatifida v. lanuginosa

Habitat view.  Mt. Townsend

Olympic endemic

Scanned slide, 1994, Ned M. Lowry Synthyris pinnatifida v. lanuginosa

Plant view.  Mt. Townsend

Olympic endemic

Scanned slide, 1994, Ned M. Lowryr Synthyris pinnatifida v. lanuginosa

Flower view.  Mt. Townsend

Olympic endemic

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This page was last updated Sunday, April 10, 2011  

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