According to the Wikipedia page for KZOK-FM, this is a transmitter for that station. The station is Wikidata item Q6342548.

I think the dog park is no longer there. Needs checking on the ground though.

Steps up to the passenger level.

Route of the creek here is incorrect.

ridewithgps heat map shows the trail connecting with road a bit east of where it's mapped. survey.

Strava has a route between driveway and trail around here

Some maps have Sivertson Road coming all this way, rather than it being a driveway. Needs checking with county GIS, and on the ground.

There's a sign here saying that the STO is planned to continue left here, along Lemolo Shore Drive.

Did Vance Creek really move this far south since the Bing aerial imagery was taken?

Some trails are equestrian; others for walking. Don't know about cycling. Needs checking on the ground and/or asking Parks & Rec.