![unionpacific up coaltrain dpus dpu ge ac4400cw tunnel27 tunnel pinecliffe cliff colorado train railroad locomotive co](https://live.staticflickr.com/744/31693324161_ce7c6fe284.jpg)
Tunnel 27
![southernpacific sp coaltrain unionpacific up curve tunnel1 plainview plain formerriogrande upmoffattunnelsubdivision moffattunnelsub railroad locomotive ge ac4400cw 345 colorado co](https://live.staticflickr.com/5595/30667965493_7b3c462faf.jpg)
View at Tunnel 1
![snow fog firstflatiron flagstaffmountain mountain canyon gregorycanyon boulder colorado bouldercountyopenspaceandmountainparks landscape earthnaturelife wondersofnature](https://live.staticflickr.com/65535/49152241358_482ca1769b.jpg)
Boulder Buried In Snow, Shrouded in Fog
![flatiron boulder colorado snow ponderosapine conifer winter landscape bouldercountyopenspaceandmountainparks earthnaturelife wondersofnature](https://live.staticflickr.com/65535/50959603492_537b216c64.jpg)
Glimpse of the Flatirons
![leastchipmunk neotamiasminimus mountainresearchstation frontrange colorado cheapthrills](https://live.staticflickr.com/65535/50532538741_caedc037b5.jpg)
Least in size, Most in fun
![smoke forestfire bouldercanyon colorado earthnaturelife wondersofnature](https://live.staticflickr.com/65535/50244433601_9f7b1004b8.jpg)
Downwind of the Maelstrom
![perseidmeteorshower meteors shootingstar grassytop limberpines limberpineskeletons night stars milkyway](https://live.staticflickr.com/65535/50236595236_467aee62e6.jpg)
Perseids 2020
![sunrise smokefilter elkmeadows mountainresearchstation layeredridges frontrange](https://live.staticflickr.com/65535/50251849642_e500951c6f.jpg)
Nuclear Fusion
![saturn jupiter milkyway grassytop smokeysky nightsky stars](https://live.staticflickr.com/65535/50705565753_e04a0c0f00.jpg)
And Jupiter aligns with Saturn
![earthnaturelife wondersofnature snow mountain skiing forest flatirons boulder colorado landscape scenic bouldercountyopenspaceandmountainparks](https://live.staticflickr.com/65535/49787109697_ea98e9409b.jpg)
All Time Record for Snow
![bouldercounty colorado eldoradocanyon eldoradocanyonstatepark neowise comet longexposure night nighthiking nightsky nightscape nocturnal stars summer eldoradosprings unitedstatesofamerica](https://live.staticflickr.com/65535/50135492568_0114e90059.jpg)
Neo-Wisdom
![1500 35350mm 350mm 5d 5dclassic 5dmark1 5dmarki 80 bird black broadtailedhummingbird canon centralcity colorado ef353503556lusm ef35350mm ef35350mmf3556lusm eos5d explore f8 green iso400 male red rockymountains sitting sittingonmetalpost superzoom telephoto unitedstates usa white geo:lat=3980856714 geo:lon=10552966707 geotagged nevadaville ngc best wonderful perfect fabulous great photo pic picture image photograph esplora explored](https://live.staticflickr.com/8878/17859386841_3c1517d2a1.jpg)
Broad-tailed Hummingbird (Male)
![](https://live.staticflickr.com/65535/49772346162_72ee809f14.jpg)
1987 06-27 0822 D&RGW SD40T-2-5399 E/B Plainview, CO
![leica m2 leicam2 voigtlander kodak kodachrome heliar 15mm heliar15 kodachrome64](https://live.staticflickr.com/65535/50444595832_e974310a1a.jpg)
View from Flagstaff, Last of the Kodachrome
![canoneos5dmarkiv rokinon14mm royalarch boulder denver colorado lookout trail rocks flatirons hike hiking arch chataqua bluemesa climb summer co 2017 wideangle](https://live.staticflickr.com/4488/37417921536_29e0d5bc76.jpg)
royal arch
![morning trees fog pine forest landscape colorado rocks cliffs hdr rugged textured layered fauxvintage eldoradocanyonstatepark kartpostal](https://live.staticflickr.com/2613/3927172235_14f8ce15b2.jpg)
cliff fog
![snow dirtroad stonewall](https://live.staticflickr.com/65535/49218190366_55b29441d7.jpg)
Old stone wall
![bouldercounty colorado coloradorockies eldoradocanyon eldoradocanyonstatepark lll landscape rockymountains southernrockies clouds crescentmoon darkskies longexposure lowlevellighting moon night nighthiking nightscape noflash nocturnal sky stars thunderstorm eldoradosprings unitedstatesofamerica](https://live.staticflickr.com/65535/50190678791_72fed9d87f.jpg)
Lunar Intrigue
![mountainwavecloud mountthorodin southernrockymountains colorado mountainresearchstation sunset timelapse video](https://live.staticflickr.com/31337/49998469791_89695e15de.jpg)
Mountain Wave Clouds
![aphrodite bearpeak boulder bouldercounty boulderopenspace colorado eveningstar evenstar landscape southboulderpeak venus blend lightpollution longexposure mountains multipleexposure newmoon night nightscape nocturnal planet stars eldoradosprings unitedstatesofamerica](https://live.staticflickr.com/65535/49896017793_2434eef80d.jpg)
Path to Aphrodite
![colorado nevadavillecolorado centralcitycolorado autumn fall aspentrees fallfoliage leaves fallleaves yellowleaves nature outdoors](https://live.staticflickr.com/65535/50391008907_196578c76f.jpg)
Autumn Splendor
![railroad trees snow up train colorado co unionpacific locomotive plain whitestuff freighttrain plainview tunnel1 lateautumn manifestfreight mdvpv](https://live.staticflickr.com/669/22545597620_fc136fc9b9.jpg)
Among the white stuff…
![river creek water waterfall women falls rock redrock southbouldercreek eldoradocanyonstatepark hiking colorado jannagalski jannagal woman](https://live.staticflickr.com/1794/42261669670_f9239f9502.jpg)
Falls Below
![unionpacific up coaltrain snow mountains ge ac4400cw 6530 tolland colorado highcountry upmoffattunnelsubdivision moffattunnelsub train railroad locomotive co bridge trestle clouds](https://live.staticflickr.com/8154/29761477686_e8a2ba7e1c.jpg)
Springtime in the mountains
![bnsf freighttrain continentaldivide autumn fallcolor ge 6222 es44ac aspens eastportal moffattunnel upmoffattunnelsub colorado train railroad locomotive co mpvoden](https://live.staticflickr.com/4509/36790033403_9d9e3f55bc.jpg)
Color under James Peak
![riograndeskitrain ansco passengertrain skitrain emd f40ph 242 storm tunnel1 plain plainview colorado coalcreekcanyon milepost23 upmoffattunnelsub train railroad locomotive co](https://live.staticflickr.com/1775/43095685255_8b479eeff0.jpg)
Ski Train at milepost 23
![riogrande drgw denverriograndewestern freighttrain snow blizzard snowstorm eastportal colorado train railroad locomotive winter co emd gp402 3100](https://live.staticflickr.com/1971/31246087628_404b1bfff2.jpg)
High country blizzard
![sunrise indianpeaks continentaldivide niwotridge fullmoon sugarloafmountain colorado](https://live.staticflickr.com/4862/45745602672_863b19c83e.jpg)
First blush
![amtrak californiazephyr cz ge p42dc heritage phasei phase1 pointlessarrow tunnel1 upmoffattunnelsub formerriogrande plain plainview colorado 156 train5 5 passengertrain co](https://live.staticflickr.com/4627/39588973851_204b69554f.jpg)
Pointless Arrow at Tunnel 1
![sunrise autumnalequinox colorado mountainresearchstation elkmeadows](https://live.staticflickr.com/1969/43063344670_96470b9cdc.jpg)
Autumn arrives
![cumulusclouds bluehour nederlandcolorado jamespeak airmasscollision](https://live.staticflickr.com/916/43042632601_abfe3746ec.jpg)
When air masses collide
![unionpacific up coaltrain es44ac ge locomotive eastportal continentaldivide jamespeak moffattunnel autumn fallcolor aspens upmoffattunnelsub formerriogrande colorado co](https://live.staticflickr.com/1914/43941411835_bf40b45938.jpg)
Color at East Portal
![flatiron boulder colorado snow landscape earthnaturelife wondersofnature](https://live.staticflickr.com/65535/50672744161_6c89c86c9c.jpg)
A faltering descent into winter
![bouldercountyopenspaceandmountainparks boulder colorado canyon fog inversion arcticairmass landscape scenic mountains earthnaturelife wondersofnature](https://live.staticflickr.com/65535/50971313602_6f29846952.jpg)
Arctic cold hugs the ground
![bearpeak boulder bouldercounty boulderopenspace colorado coloradorockies landscape pinusponderosa ponderosapine rockymountains snowmoon southernrockies winter cold darkskies longexposure moon mountains night nighthiking nightsky nightscape nocturnal pines quartermoon sky snow snowscape stars unitedstates](https://live.staticflickr.com/65535/50959407318_b1fac24fe5.jpg)
Winter Gleam
![railroad mountains train colorado circus railway trains unionpacific rockymountains passenger railfan railroads moffat ringlingbrotherscircus railroading railfanning passengercars moffatroute rbbb gees44ac coloradorailroads emdsd70m coloradotrains](https://live.staticflickr.com/7645/27624143076_d996d9e1fa.jpg)
Rainbow at Pinecliffe
![railroad train colorado fallcolors railway trains amtrak rockymountains passenger railfan railroads moffat californiazephyr railfanning passengercars moffatroute gep42dc coloradorailroads coloradotrains siemensacs64](https://live.staticflickr.com/710/21807716198_0b11b2bfa8.jpg)
Amtrak Through the Fall Colors
![sunset boulder colorado mountains flagstaffmountain firstflatiron greatplains landscape universityofcolorado earthnaturelife wondersofnature](https://live.staticflickr.com/65535/50899685123_16e52c9da0.jpg)
Boulder at Sunset