Not surprisingly, Denver Parks and Rec doesn't take very good care of these assets. Jackie Robinson Field is the only one that I see regularly, but it's gone decidedly downhill in the last 10 years--grass isn't taken care of, weeds in the infield, warning track is not in good shape. Rather than encouraging teams to use it, the city charges a 200+% premium to book it for games and/or practices, so it sits unused and decaying a lot of the time. Fairly typical for Denver Parks and Rec whose baseball fields are by far the worst of any of the metro area communities.