Nathan Cassell
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pyxorium.com
Nathan Cassell
@pyxorium.com
1.4K followers 170 following 1.7K posts
Here for science, art, music, the ATmosphere
🚲 🏃‍♂️ 🌱 📷 🥧 Colorado
🎧 https://plyr.fm/u/pyxorium.com
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pyxorium.com
Weather warming up this am 🏃‍♂️
Snowdrift in foreground, dry grass meadow in middle ground, Flatirons rock formations in the distance, white and gray clouds in sky. Long Lake Regional Park in Arvada, Colorado
December 11, 2025 at 6:12 PM
pyxorium.com
Santa Fe, New Mexico
December 2014
'Andrea' Bronze sculpture of Pueblo Indian Dancer Artist: Tammy Garcia, Santa Clara Pueblo 2010 Museum of Indian Arts & Culture Bronze sculpture near doorway of adobe building
December 11, 2025 at 2:59 PM
pyxorium.com
Walked Van Bibber Park this afternoon, with a loop through the Serene Conservancy. Also stopped by the hay baler and hay rake.
A cluster of dark red crabapples on stem of a tree. Mechanical detail of New Holland Machine Co. Model No. 77 Hay Baler Mechanical detail of John Deere 594 Side-delivery Hay Rake Knothole on log that is laying on the ground
December 11, 2025 at 1:40 AM
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Frozen waterfalls and weeping pine tree at Denver Botanic Gardens
December 2011
Two frozen aquamarine waterfalls cascading over red rock stone wall, snow on the ground and on border of fountain pool, weeping pine tree hanging over the frozen water and snow, blue sky above. Denver Botanic Gardens, Denver, Colorado
December 10, 2025 at 3:55 PM
pyxorium.com
Love this, streaming music on the drive home linked through my Bluesky account, thank you @plyr.fm!
Touchscreen multimedia display in automobile, showing information related to music track that is playing via @plyr.fm, an audio streaming platform that links with Bluesky accounts (or AT Proto)
December 10, 2025 at 12:16 AM
pyxorium.com
Went for a walk this morning at Tucker Lake and the Arvada Reservoir, weather was overcast with a slight breeze. Watched a bald eagle having fish for breakfast, and a few deer hanging out.
Bare cottonwood tree in dry grass area near the shoreline of Tucker Lake, cloudy sky above. Arvada, Colorado Bald eagle in a tree clutching a fish with its right talon Five deer standing in a meadow of dry grass, small drifts of snow scattered about, two of the deer are gently sparring with their antlers. A few drifts of snow and a dry grass meadow the in foreground, Arvada Reservoir in middle ground, flat top mesa of North Table Mountain in the distance, cloudy sky above with small window of blue peeking through the top right of the frame.
December 9, 2025 at 7:42 PM
pyxorium.com
On the Fairmount Trail
December 2023
Dirt trail extending from bottom of frame to vanishing point in the middle ground, water channel running alongside of the path, dry grass areas near the dirt trail. The trail is mostly covered in snow. Foothills in the distance, also covered in snow. Hazy sky above. Fairmount Trail in Arvada, Colorado
December 9, 2025 at 4:13 PM
pyxorium.com
Excited to see this, @plyr.fm now enables Playlists
Sound Check
playlist by @pyxorium.com • 4 tracks
plyr.fm
December 8, 2025 at 9:53 PM
pyxorium.com
A visit to the Berkeley Rose Garden Park
December 2023
Toyon (Heteromeles arbutifolia; aka Christmas berry, California holly) cluster of bright red berries on stems with green leaves Yellow rose Red rose View of San Francisco Bay and Golden Gate Bridge from the rose garden in Berkeley, California. Foliage from large trees obscure upper left and lower right portions of the frame.
December 8, 2025 at 3:07 PM
pyxorium.com
From yesterday's walk at the Arvada Reservoir. The dive-bombing eagle eventually flew over to Tucker Lake and rested on the ice for a while.
Gulls standing in shallow water at Arvada Reservoir, in Arvada, Colorado Park bench near concrete sidewalk along edge of Arvada Reservoir, blue sky above with large white and gray clouds Snow drift in foreground, serpentine hairpins of Ralston Creek Trail toward right of frame, Arvada Reservoir in middle ground, flat top mesa of North Table Mountain on the horizon toward the right, skyline of downtown Denver is barely perceptible to the left of the reservoir, blue sky above with a few white and gray clouds Bald eagle standing on ice which has formed on surface of Tucker Lake, unfrozen lake water in the distance, a few scattered branches are in the water behind the eagle
December 7, 2025 at 6:27 PM
pyxorium.com
Rail line near East Portal Road
December 2009
Converging railroad tracks extending from bottom of frame upward, with a vanishing point in the middle ground, above which are a series of tree covered ridge lines, with an upper ridgeline (the Continental Divide) above timberline. Small drifts of snow line the railroad tracks. Puffy white and gray clouds in the sky above the highest peaks. Small portions of faded blue sky peeking through. These tracks are part of the Moffat Tunnel Subdivision of the Union Pacific Central Corridor, which runs through the Moffat Tunnel under the Continental Divide. They are located in the South Boulder Creek drainage, east of the East Portal of the Moffat Tunnel and west of Tolland (and Rollinsville).
December 7, 2025 at 5:00 PM
pyxorium.com
Was out for a walk at the Arvada Reservoir today and saw something I hadn't seen before, a bald eagle dive-bombing ducks. After a couple of passes the eagle flew up to a nearby tree.
Bald eagle swooping in on a raft of ducks at Arvada Reservoir, in Arvada, Colorado. The ducks are splashing and making a commotion. Bald eagle flying over a raft of ducks. Bald eagle with talons extended toward the water, ducks making themselves scarce. Bald eagle resting on the branch of a tree.
December 7, 2025 at 12:34 AM
pyxorium.com
Shout out to @plyr.fm, an audio streaming platform you can link with your Bluesky account
Dear Prudence - Melvin Seals & JGB - pyxorium.com
pyxorium.com • NedFest 2016
plyr.fm
December 6, 2025 at 5:33 PM
pyxorium.com
Melvin Seals & JGB
at Be On Key Psychedelic Ripple
Denver, Colorado
Melvin Seals (Organ), Cheryl Rucker (Vocals), Pete Lavezzoli (Drums), Shirley Starks (Vocals)
December 2016
Band members on stage at nightclub in Denver, Colorado. Melvin Seals sitting at organ, Cheryl Rucker standing behind microphone, Pete Lavezzoli sitting at drums, Shirley Starks standing behind microphone
December 6, 2025 at 4:11 PM
pyxorium.com
Went for a walk today along the Van Bibber Creek Trail and up to Serenity Ridge Park, it was a bit chilly and overcast
Stenger pond at the Stenger Sports Complex in Arvada, Colorado. Sky mostly dark and cloudy, with a small portion of light peeking through and casting a faint reflection on the surface of the pond ice. The ground around the pond is covered in snow, and houses of a residential neighborhood are in the distance on the horizon. Thin horizontal slice of Stenger pond ice in bottom of frame, Van Bibber Creek Trail and reeds growing along Van Bibber Creek in the middle ground extending across the frame horizontally. Three pine trees. Two coyote decoys in the soccer field in the distance, dutifully keeping the geese away. Ground covered in snow.
December 6, 2025 at 3:16 AM
pyxorium.com
From yesterday's walk on the Peaks to Plains Trail. The weather will be warming up over the next few days and I expect much of this snow and ice will begin melting away 🌤️
Snow on railings and walking surface of metal bridge, icicles forming on bolts on the side of the top railing. Canyon wall faintly visible in distance. Clear Creek Canyon Park, near Golden, Colorado Two women and a dog running on the Peaks to Plains Trail, snow covers trail and surrounding canyon area. Exposed rocky canyon wall toward top right of frame. West side portal of Tunnel 1 (US Highway 6) is visible behind tree branches on the left. Flowing water of Clear Creek is on far side of a metal railing that borders the trail. Sky covered in gray and white clouds, with small portions of blue peeking through. Tree with multiple branches covered in snow in foreground, water of Clear Creek in middle ground, rocks on near and far banks of creek are covered in pillows of snow, wooden water flume of Welch Ditch Trail is faintly visible in the distance running horizontally along the far side of the canyon wall. Wooden water flume of Welch Ditch Trail, walking surface and vertical posts of flume covered in snow, canyon walls faintly visible in the distance, icicles hanging from rock in top right of frame.
December 5, 2025 at 4:31 PM
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Arvada Reservoir
December 2020
Thin layer of ice covering surface of reservoir water reflects light in horizontal crystal patterns, with irregularly shaped portions of uncovered dark water peeking through. A cylindrical water buoy is in the top right of the frame, extending vertically through the ice. Arvada, Colorado
December 5, 2025 at 3:31 PM
pyxorium.com
A walk on the Peaks to Plains Trail this am, started at Gateway and turned around at CCR where there is an interpretive sign with information about the next trail segment under construction (Huntsman's Rancho, opening 2026). A big thanks to <a href="https://bsky.app/profile/did:plc:37nao75ywakrvidpw62nvqxw" class="hover:underline text-blue-600 dark:text-sky-400 no-card-link" target="_blank" rel="noopener" data-link="bsky-mention">@jeffcoopenspace.bsky.social for their work on this trail!
Gateway Trailhead of Peaks to Plains Trail, metal staircase leading down to the trail below, with a view west into Clear Creek Canyon, the flume portion of the trail is faintly visible as a horizontal line along the left side of the canyon. Fresh snow from yesterday covers most surfaces of the foothills, including the rocks and vegetation. Blue sky above with a few white and gray clouds. Just west of the town of Golden, Colorado. End of the open segment of the trail, at the Perseverance Bridge near the CCR Trailhead. Metal frame bridge extending over Clear Creek. A large metal screen barrier blocks further travel on the bridge, and includes an orange sign saying "Construction Access Only" an interpretive sign that says "Coming Soon" (additional info on this sign in the next alt text). US Highway 6 is visible on the far side of the bridge, as is a snow covered canyon mountainside. Jefferson County Parks and Open Space recently published this information about the CCR Trailhead: "JCPOS is excited to announce that the CCR Trailhead in Clear Creek Canyon Park opened to the public on Friday, November 21. This newest trail segment brings a number of exciting features to the Clear Creek corridor. It offers parking for 42 vehicles and takes its name from the Colorado Central Railroad, which in the 1870s hauled ore from the mines of Black Hawk to the smelters in Golden. Visitors can now enjoy an additional 1.5 miles of fully ADA-accessible trail seamlessly connecting to the Gateway Segment. The route also includes five new bridges—Diversion Point, Granite Giants, 691, CCR, and Perseverance—each adding character and connection to the landscape." Interpretive sign text: Coming Soon Jefferson County Parks and Open Space is continuing work on the next segment of the Peaks to Plains Trail, expanding Clear Creek Canyon Park access. The next segment will connect the CCR Trailhead to Huntsman's Rancho Trailhead adding 1.5 miles of new trail! This new trailhead will include parking for 70+ vehicles, 4 bridges, multiple creek access points, and an additional one mile soft surface trail loop. Construction should be completed by end of 2026. Please give workers and equipment space, stay out of construction areas, and follow all signs. Thank you for your patience. Man from Jefferson County Parks and Open Space operating a snow blower on the Peaks to Plains Trail near the Gateway Trailhead. Snow covers the ground, except for portions of the trail cleared by the snow blower. A yellow sign indicates a Trail Intersection, which is a point where the historic Welch Ditch Trail (which includes the wooden flume trail) connects with the Peaks to Plains Trail. Blue sky above with large white and gray clouds.
December 5, 2025 at 2:52 AM
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A few more from yesterday's walk on the Peaks to Plains Trail. By late afternoon, winter darkness had begun settling into the canyon.
West side of Tunnel 1. On the upper left is US Highway 6 passing through the tunnel, with overhead street light lamps on the outside of the tunnel, and overhead lights on the interior of the tunnel, and a guard rail alongside the highway. On the lower right is Clear Creek flowing through the canyon. Near Golden, Colorado. Street light lamps on east side of Tunnel 1 illuminating the surface of Clear Creek, which is partially covered in snow. Light from the street lamps illuminating snow, trees, and foliage along right and left banks of Clear Creek. Ridgeline of foothills in the distance. Moon faintly visible through snow clouds, portions of bare deciduous trees are silhouetted against the hazy sky, light from a passing car illuminates a few tree branches.
December 4, 2025 at 3:52 PM
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Aloe flower bud at the University of California, Irvine, Arboretum
December 2013
Flower bud on aloe plant, with red, pink, and coral tones, and yellow along the petal edges.
December 4, 2025 at 3:17 PM
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Went for a walk on the Peaks to Plains Trail this pm to see what the snow was like. A couple of parks dept peeps there said they had plowed the entire trail, which was great. It was icy in spots and walking was more difficult as it got darker out, I eventually put my Yak Trax on which helped a lot.
Woman and large dog running on Peaks to Plains Trail just west of Golden, Colorado. The fence running along side the trail, the trees on both sides of the trail, and much of the vegetation has a coating of fresh snow. This part of the trail is on the lower segment close to town, and gets a lot of traffic. Man running along a portion of the trail that goes between two large rock outcroppings. This part of the trail is farther away from town, and gets less traffic. Tire tracks from the snow plow are visibly imprinted on the snow. Canyon wall in the distance. A few people on the trail, large Douglas fir trees covered in snow line the trail, on the right side of the railing. Bridge and canyon wall in the distance. Yak Trax traction device on my shoe. Very helpful for walking in slippery conditions. I'm on a bridge here, and water flowing in Clear Creek can be seen below.
December 4, 2025 at 2:39 AM
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Limber pines in South Park
December 2011
Two large limber pine trees (Pinus flexilis) in the South Park valley, Park County, Colorado. Dry grass and a few rocks are on the ground. Blue sky above.
December 3, 2025 at 3:21 PM
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Went to see Diva last night at the Sie FilmCenter with two of my kids, fun movie!
Sign (Welcome to DIVA, Sie FilmCenter) and magenta neon light number 2 over the doorway to theater at Sie in Denver, Colorado Still from movie Diva, Alba and Jules walking down the street, Jules is pushing a moped
December 3, 2025 at 2:55 PM
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Arvada Reservoir
December 2020
Flat surface of reservoir water in foreground, along with a bare tree, some dry grass, and the edge of a paved path on right lower corner, thin line of reservoir wall extending horizontally in the middle ground between two portions of land, early evening sky above with fading blue and slightly pink colors. The Arvada/Blunn Reservoir in Arvada, Colorado
December 2, 2025 at 2:45 PM
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A few more from yesterday's walk in Clear Creek Canyon. It was super cold so there weren't many people out, but there were a few.
Two small groups of people walking and one man running (in shorts!) on snow covered path along the Peaks to Plains Trail near Golden, Colorado. A stone wall is on the right side of the path, a metal railing and fence is on the left side. Bare deciduous trees on the left side behind the railing. Snow and some ice had accumulated on the path in the narrow parts of the canyon which don't receive much sunlight. Woman running on path next to Clear Creek. The canyon is more open through this area, and because the path gets more sunlight there is no accumulated snow. Portions of CCR Trailhead parking lot and US Highway 6 are on the right side of the frame. Man standing next to bicycle on the Perseverance Bridge just west of the CCR Trailhead parking lot. The bridge crosses over Clear Creek which is flowing through Clear Creek Canyon. He said it was his first time riding on this segment of the trail. He also noted that in addition to the more shaded areas of the trail, the bridges often had snow on them. CCR Trailhead parking lot, completely empty. On a weekend! If the weather had been warmer the lot would have been full. Paved parking lot with painted parking space lines on left, sidewalk and railing in center, Clear Creek on right, mountainside in distance.
December 2, 2025 at 5:19 AM