Fort collins, co, usa - 24. Dezember 2016: Kraftwerk Energie Campus der Colorado State University - ein 2014 fertiggestelltes neues Gebäude und historisches städtisches Kraftwerk, Luftaufnahme bei Wintersonnenaufgang. - Stockfoto & -bild

Aerial cityscape of Fort Collins, Colorado, with Poudre River and historic Municipal Power Plant, winter scenery

Construction of whitewater park on the Poudre River in downtown of Fort Collins, Colorado, aerial view

FORT COLLINS, CO, USA - NOVEMBER 15, 2015: Powerhouse Energy Campus of Colorado State University - aerial view at a new building completed in 2014 and historic Fort Collins Municipal Power Plant behind it.

Winter dawn over Fort Collins, Colorado - aerial view of historic municipal railway building (trolley barn)

Downtown of Fort Collins, Colorado, at cold winter dawn - aerial cityscape with Poudre River in front and Rocky Mountains in background..

FORT COLLINS, CO, USA - MARCH 21, 2015: Aerial view of Fort Collins downtown, early spring scenery with Front Range of ROcky Mountains in background

Aerial view of Fort Collins downtown, Poudre River and a bike trail, cold morning winter scenery

FORT COLLINS, CO, USA - October 6, 2014: Aerial view of Fort Collins landmarks - historic Harmony Mill and Ranchway Feed grain elevator.

Footbridge over Cache la Poudre River at newly constructed whitewater park in downtown of Fort Collins Colorado with Powerhouse Energy Campus of Colorado State University in background

Aerial view of park and playground at foothills of Rocky Mountains in Fort Collins, Colorado, shot from a low flying drone

FORT COLLINS, CO, USA - MARCH 21, 2015: Aerial view of Fort Collins downtown, early spring scenery with morning light

Aerial view of a local public park with baseball fields in Fort Collins, Colorado, early spring

Winter dawn over residential area of Fort Collins and Rocky Mountains foothills in northern Colorado after snowstorm, aerial view

October dawn over Fort Collins and foothills of Rocky Mountains in northern Colorado, aerial view