I was wondering if anyone had a suggestion for the kinds of plant,
flowers and ground covering that would grow at this elevation BRBR

Do some research on gardening in Denver. In my visits there I noticed their
plant selection is somewhat limited, mainly because the climate is very dry.
Consider growing alpines.
Iris,
Central NY, Zone 5a, Sunset Zone 40
"If we see light at the end of the tunnel, It's the light of the oncoming
train."
Robert Lowell (1917-1977)