Posted by Lee Petersen | August 6, 2020
Reflection of Light

[latexpage] [This is a stub article for reference in physics, optics, and photography posts. It will be updated and expanded.] Specular Reflection The quality of reflected light depends mostly on...

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Arctic Lupine – Lupinus arcticus
Posted by Lee Petersen | August 4, 2020
Arctic Lupine – Lupinus arcticus

The arctic lupine is a purple-flowering, herbaceous plant with a raceme of pea-like flowers. It contains a neurotoxin, sparteine, thought to deter snowshoe hares.

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Reflection at Horseshoe Lake, one of the Denali National Park Entrance Trails
Posted by Lee Petersen | August 2, 2020
Denali National Park Entrance Trails

Map and descriptions for numerous trails near the entrance and Visitor Center to Denali National Park. Trails for all walkers and hikers.

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Norwegian cinquefoil – Potentilla norvegica
Posted by Lee Petersen | July 30, 2020
Norwegian cinquefoil – Potentilla norvegica

Norwegian cinquefoil is a widely distributed annual or perennial in the Rose family with ternate, serrated leaves and small yellow flowers.

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Bridal Veil Falls in Keystone Canyon near Valdez, Alaska
Posted by Lee Petersen | July 27, 2020
Keystone Canyon – Valdez Sightseeing

Keystone Canyon is a gorgeous 3-mile long canyon with enormous waterfalls and cliffsides near Valdez, Alaska. There are numerous hiking trails in the area.

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Park visitors speak with Denali National Park Rangers and staff outside the Visitor Center which is closed for the 2020 summer season due to COVID-19.
Posted by Lee Petersen | July 25, 2020
Weekend in Denali – Year of COVID-19

At the beginning of July, we spent a weekend in Denali, camping for 2 nights at the Riley Creek Campground. For a change, we weren't off for big adventures, but...

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Review: MSR WindBurner Personal Stove System
Posted by Lee Petersen | July 25, 2020
Review: MSR WindBurner Personal Stove System

The MSR Windburner is an exceptional personal stove system made by Mountain Safety Research. My review, tech specs, and recommendations for use.

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Twinflower in Denali National Park
Posted by Lee Petersen | July 23, 2020
Twinflower – Linnaea borealis

Twinflower is a creeping subshrub with a two nodding, bell-like flowers on a Y-stem. It was named after the "father of modern taxonomy", Carl Linnaeus.

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Monkshood flower in Denali National Park
Posted by Lee Petersen | July 19, 2020
Monkshood – Aconitum delphiniifolium

Monkshood is a highly toxic plant with purple flowers, resembling larkspur with a purple hood over the top of the flower.

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Posted by Lee Petersen | July 16, 2020
Smugmug – Not Just For Professional Photographers

SmugMug is an excellent photo service, whether you are just looking for an inexpensive cloud option for back-up or a seasoned pro photographer wanting to make a beautifully presented portfolio.

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