Is this road actually one way? Think I've been on it in the past and it wasn't, but don't want to edit it unless I knew for sure.

Some missing trails here that show on Strava Cycling heatmap

lots of informal dirt trails throughout the park that are not mapped. long term, there may be some changes coming to the park - https://www.denvergov.org/Government/Agencies-Departments-Offices/Agencies-Departments-Offices-Directory/Parks-Recreation/Planning-Design-Construction-Community-Engagement/Park-Facility-Projects/Park-Hill-Park

seem to be some missing MTB/hiking trails and trail ratings in this park

I believe this section of the Blue Ridge Parkway is open again - https://www.nps.gov/blri/planyourvisit/roadclosures.htm
there may be some more open sections in the area as well

need some on the ground verification about how these trails actually connect/don't connect. El Jefe/Drop Zone/Flodelo/Dos Verdes

Keystone resort map shows two trails here (Holy Roller and Punk Rock), but I can't confirm where exactly they are.