Asturias can you give an indication of other clues can be found in your photos?
I have compiled the following:
Not in Iowa and probably north/east of Iowa as Iowa is closer than the Rocky Mountains.
Runway probably 60ft wide, and extended (in the last decade?)
Nice looking hangar, probably renovated (re-cladded, new door)
Self serving avgas station
Home? of a Cessna 172N Skyhawk II with a 1978 striping pattern.
Perhaps right beside water landing.
I have trawled through thousands of Cessna but only one with a matching pattern is a Cessna currently for sale in Australia.
I trawled through hundreds of red hangars but apparently nobody proud enough to post it on the internet.
I searched for excavator / runway but no succes.
I have the idea others have lost interest.