Fossil Ridge Park and Corruption in Los Angeles

In researching places within striking distance where I can walk at high speed and get good aerobic activity and yet minimize toxic waste input.  As you might imagine this can be difficult in the greater Los Angeles area unless you are in a few well understood regions: for example near the beach or in the Santa Monica mountains.  There are some other regions too, often mediated or enabled by so-called micro-climates.  

So one obvious general area is south of here in Van Nuys in or near Mulholland Drive.  I came across a park I had never heard of before: Fossil Ridge Park.  What I did not realize is that this park, although difficult to visit and use, features one of the great attributes of Los Angeles: corruption in the service of real estate development.

But be careful, what you read on the always useful and informative Internet may be nothing more than self serving bullshit.  See for example:

https://thepregopizza.com/top-sights/fossil-sherman-oaks-ca/