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The colors of the fall seasom embrace the diverse landscape of the Teton Mountain Range
Striking yellow mineral concretions stand out against the intense red of Rio Tinto's acidic waters
Fall Aspens and San Juan Mountains - Scenic views near Telluride, Colorado USA.
Grand Prismatic Spring, Yellowstone National Park, Wyoming
Aerial view of canyons in Monument Valley, Arizona, USA.
Sulphur pond at desert(Obo Liang)
Hot springs are the most common hydro-thermal features at Yellowstone National Park.  They vary from frothing mocha-like boiling water to clear and calm pools of tremendous depth.
Golden leaves on a birch in autumn.
Calendula is an antibacterial and anti-inflammatory plant
Mount Wilson With Autumn Aspen Trees Near Telluride Colorado USA
View from Artist Point
Geyser in grand prismatic spring Basin in Yellowstone National Park in Wyoming
Fall Autumn Colors Around Telluride
Poppies bloom in springtime in Southern California
Autumn leaf colors in Guanella Pass, Colorado
Fresh snow on Molas Pass in Colorado as the orange leaf color of the Aspen Trees stand out against the snow and cloudy blue sky
Kebler Pass in Autumn, Colorado, USA
Yellow Aspen Trees of the Santa Fe National Forest in Autumn.
Gravel and sand open pit mining, pond with sediments - aerial view
Hochstetter's Pool, Orakei Korako Park, Taupo, North Island, New Zealand, Oceania. \nHochstetter's Pool in the Orakei Korako Geothermal Park, Taupo Volcanic Zone.
Orange-blue Colored Black Sand Basin lake in Yellowstone National Park, Wyoming, USA.Nikon D3x
Majestic rural landscape
Panorama of surreal colors and Mars like landscape created by Sulphur springs in the hottest place on earth, the Danakil Depression in the Afar Region of Ethiopia.
Vivid details of the iron-rich sediment and microbial mats along the banks of Rio Tinto.
Red Mountain #1, Red Mountain Pass, Colorado, USA
Low clouds hang in the mountains above the fall color on the Bierstadt Moraine in Rocky Mountain National Park, Colorado
Soaking wet orange flower outdoors on an Autumn morning.
norris geyser basin porcelain in in Yellowstone National Park in Wyoming
Aspen groves are unique ecosystems characterized by a remarkable ability to reproduce vegetatively, leading to the formation of what appears to be a single organism known as a clonal colony.  Aspen trees (Populus tremuloides) primarily reproduce through a process called suckering. The grove starts from a single seedling, but over time, new shoots (suckers) emerge from the root system, creating genetically identical trees. These interconnected trees form a clonal colony, often considered the largest living organism on Earth.  The trees within an aspen grove are connected by a common root system. This interconnected root network allows the trees to share resources such as water and nutrients. It also enables them to communicate with each other, making the grove function as a unified entity.  This aspen grove on a hillside was photographed in the Coconino National Forest north of Flagstaff, Arizona, USA.
Free Images: "bestof:SULPHUR, ORANGE (Colias euytheme) (9-8-11) 78 circulo montana, patagonia lake ranch estates, scc, az ALAN SCHMIERER ALAN SCHMIERER"
ORIOLE,_STREAK-BACKED_(6-11-11)_78_circulo_montana,_patagonia_lake_ranch_estates,_scc,_az_-10.jpg
SWEAT_BEE,_sp_(Augochloropsis_sp)_(9-5-11)_78_circulo_montana,_patagonia_lake_ranch_estates,_scc,_az_-04.jpg
SWEAT_BEE,_sp_(Augochloropsis_sp)_(9-5-11)_78_circulo_montana,_patagonia_lake_ranch_estates,_scc,_az_-02.jpg
CARPENTER-BEE,_VALLEY_(Xylocopa_varipuncta_)_(7-12-11)_78_circulo_montana,_patagonia_lake_ranch_estates,_scc,_az_-01.jpg
DUSKYWING,_MOURNFUL_(Erynnis_funeralis)_(12-27-13)_78_circulo_montana,_patagonia_lake_ranch_estates,_scc,_az.jpg
MARBLE,_DESERT_(Euchloe_lotta)_(2-17-14)_circulo_montana,_patagonia_lake_ranch_estates,_scc,_az_-01.jpg
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FROG,_CHIRICAHUA_LEOPARD_(Rana_chiricahuensis)_(9-25-11)_pena_blanca_lake,_scc,_az_-_02.jpg
YELLOW,_BARRED_(Eurema_daira)_(11-22-12)_harshaw_road_rabbitbrush,_patagonia_mts,_scc,_az_-01.jpg
BLUE,_ACMON_(Plebejus_acmon)_(11-22-12)_harshaw_road_rabbitbrush,_patagonia_mts,_scc,_az_-02.jpg
FROG,_CHIRICAHUA_LEOPARD_(Rana_chiricahuensis)_(9-25-11)_pena_blanca_lake,_scc,_az_-_01.jpg
871_-_CHIPPING_SPARROW_(11-18-2015)_Patagonia_Lake,_Santa_Cruz_Co,_AZ.jpg
WREN,_SEDGE_(11-27-10)_lower_thumb_rock_cove,_pena_blanca_lake,_scc,_az_-01b.jpg
704_-_RUBY-CROWNED_KINGLET_(11-18-2014)_patagonia_lake,_santa_cruz_co,_az_-01.jpg
934_-_YELLOW-HEADED_BLACKBIRD_(11-18-2014)_with_redwing_and_great-tailed_blackbirds,_patagonia_lake,_santa_cruz_co,_az_-02.jpg
342_-_RED_PHALAROPE_(9-15-10)_Bog_Hole_Wildlife_Area,_south_of_Patagonia,_scc,_az_(2).jpg
342_-_RED_PHALAROPE_(9-15-10)_Bog_Hole_Wildlife_Area,_south_of_Patagonia,_scc,_az_(5).jpg
340_-_WILSON'S_PHALAROPE_(9-15-10)_Bog_Hole_Wildlife_Area,_south_of_Patagonia,_scc,_az.jpg
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342_-_340_-_RED_&_WILSON'S_PHALAROPE_(9-15-10)_Bog_Hole_Wildlife_Area,_south_of_Patagonia,_scc,_az_(2).jpg
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PHALAROPE,_RED_(9-15-10)_Bog_Hole_Wildlife_Area,_south_of_Patagonia,_scc,_az_-08.jpg
PHALAROPE,_RED_(9-15-10)_Bog_Hole_Wildlife_Area,_south_of_Patagonia,_scc,_az_-03.jpg
PHALAROPE,_RED_(9-15-10)_Bog_Hole_Wildlife_Area_south_of_Patagonia,_scc,_az_-14,_with_Wilson's.jpg
LUPINE_(4-1-13)_patagonia,_az_-01.jpg
549_-_AMERICAN_KESTREL_(1-5-14)_san_rafael_grasslands,_scc,_az_-01.jpg
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885_-_BAIRD;S_SPARROW_(11-16-2014)_san_rafael_grasslands,_santa_cruz_co,_az.jpg
885_-_BAIRD'S_SPARROW_(11-13-2015)_san_rafael_grasslands,_santa_cruz_co,_az_-01.jpg
839_-_BLACK-THROATED_GRAY_WARBLER_(11-23-2014)_sonoita_creek_state_natural_area,_santa_cruz_co,_az_-01.jpg
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704_-_BLACK-CAPPED_GNATCATCHER_(11-23-2014)_sonoita_creek_state_natural_area,_santa_cruz_co,_az_-04.jpg
PYGMY-BLUE,_WESTERN_(Brephidium_exile)_(11-22-2014)_las_cienegas_national_conservation_area,_pima_county,_az_-02.jpg
KILLDEER_(2-1-11)_ca_-01.jpg
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826_-_MAGNOLIA_WARBLER_(12-17-13)_tanque_verde_wash,_tucson,_pima_co,_az_-02.jpg
704_-_BLACK-CAPPED_GNATCATCHER_(5-4-2015)_female,_florida_wash,_pinal_co,_az_-01.jpg
VIEW_FROM_THE_HOUSE_-_0233_(11-14-2014).jpg
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845_-_RUFOUS-CAPPED_WARBLER_(1-13-14)_florida_wash,_pima_co,_az_-_13.jpg
845_-_RUFOUS-CAPPED_WARBLER_(1-13-14)_florida_wash,_pima_co,_az_-_03.jpg
CIBOLA_NAT_WILDLIFE_REFUGE,_south_of_Blyth,_CA_(3-6-14)_la_paz_co,_az_(2).jpg
700_-_SINALOA_WREN_(12-18-13)_huachuca_canyon,_cochise_co,_az_-04.jpg
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704_-_BLACK-CAPPED_GNATCATCHER_(5-4-2015)_female,_florida_wash,_pinal_co,_az_-02.jpg
885_-_BAIRD'S_SPARROW_(4-25-2015)_san_rafael_grasslands,_santa_cruz_co,_az_-16.jpg
826_-_MAGNOLIA_WARBLER_(12-17-13)_tanque_verde_wash,_tucson,_pima_co,_az_-06.jpg
700_-_SINALOA_WREN_(12-18-13)_huachuca_canyon,_cochise_co,_az_-06_carrying_nesting_material.jpg
826_-_MAGNOLIA_WARBLER_(12-17-13)_tanque_verde_wash,_tucson,_pima_co,_az_-07.jpg
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SWALLOWTAIL,_WESTERN_TIGER_(Papilio_rutulis)_6-16-11)_carcass_cr,_wayne_co,_ut_(1).jpg
HERON,_GREAT_BLUE.jpg
DUCK,_LONG-TAILED_(11-4-11)_pena_blanca_lake,_scc,_az_-13.jpg
027_-_AMERICAN_WIGEON_(12-18-13)_albuquerque,_nm_-01.jpg
SANTA_ANA_NAT_WILDLIFE_REFUGE,_near_Mc_Allen,_Tx_-06.jpg
SANTA_ANA_NAT_WILDLIFE_REFUGE,_near_Mc_Allen,_Tx_-04.jpg
023_-_WOOD_DUCK_(12-18-13)_albuquerque,_nm_-05.jpg
023_-_WOOD_DUCK_(12-18-13)_albuquerque,_nm_-03.jpg
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ROCK_CORRAL_CANYON_-_Atascosa_Mts_(12-22-13)_(3).jpg
954_-_BRAMBLING_(12-24-2014)_arcata,_humboldt_co,_ca_-01.jpg
SPOTTED_CORALROOT_(Corallorhiza_maculata)_(6-16-12)_douglas_co,_or_-02.jpg
449_-_BARN_OWL_(7-03_10)_los_osos,_slo_co,_ca.jpg
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LIZARD,_BLUNT-NOSED_LEOPARD_(gambelia_sila)_(6-6-13)_lincoln_co,_nv_(2).jpg
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221_-_HARRIS'S_HAWK_(3-5-12)_laguna_atascosa_nat_wildlife_refuge,_near_laguna_vista,_tx_(3).jpg
858_-_OLIVE_SPARROW_(3-5-12)_laguna_atascosa_nat_wildlife_refuge,_near_laguna_vista,_tx_(2).jpg
POPPY,_CALIFORNIA_(eschscholzia_californica)_(4-24-10)_carrizo_plain_nat_mon_-03.jpg
CROW,_AMERICAN_(3-21-10)_elephant_seal_vista,_slo_co,_ca_-02.jpg
EGRET,_SNOWY_1-12-06_morro_bay,_slo_co,_ca.jpg
NIGHT_SNAKE_(hypsiglena_torquata)_with_possible_PLATEAU_STRIPED_LIZARD_(cnemidophorus_velox)_(6-13-09)_southern_utah_or_maybe_arizona.jpg
WHITE,_GREAT_SOUTHERN_(Ascia_monuste)_(2-20-13)_pelican_island_nat_wildlife_refuge,_indian_river_co,_fl_(1).jpg
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CRESCENT,_PHAON_(Phycoides_phaon)_(3-7-12)_santa_anna_national_wildlife_refuge,_near_mc_allen,_tx_(2).jpg
ADMIRAL,_RED_(Vanessa_atalanta)_(3-7-12)_santa_anna_national_wildlife_refuge,_near_mc_allen,_tx_(2).jpg
438_-_WHITE-TIPPED_DOVE_(3-7-12)_santa_anna_national_wildlife_refuge,_near_mc_allen,_tx_(2).jpg
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SKIMMER,_ROSEATE_(Orthemis_ferruginae)_(3-7-12)_santa_anna_national_wildlife_refuge,_near_mc_allen,_tx_-02.jpg
PONDHAWK,_PIN-TAILED_(Erythemus_plebeja)_(3-7-12)_santa_anna_national_wildlife_refuge,_near_mc_allen,_tx_-05.jpg
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228_-_WHITE-TAILED_HAWK_(3-5-12)_laguna_atascosa_nat_wildlife_refuge,_near_laguna_vista,_tx.jpg
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