The road marked here as "Reserve Road" is actually "Wetterhorn Peak Trail". The change is at the junction with "Running Bear" with "Reserve Road" to the north of that junction. (The change is at the boundary between two distinct developments.)

This point is a junction between "Reserve Road" to the north, and "Wetterhorn Peak Trail" to the south. Both these roads are private roads.
Passage through this junction (to/from Reserve Road -- Wetterhorn Peak Trail) is RESTRICTED for EMERGENCY USE ONLY per legal provisions of the easement https://landrecords.co.jefferson.co.us/RealEstate/SearchDetail.aspx?docId=F2077274&ms=0

much new development in this area. sucks to not have recent satellite imagery (really missing Maxar).

Are way/142867372 related to relation/10659352 ? If not, why do they have the same name "Warembourg Open Space" ?

OSRM uses this route when trying to route from Ball Arena, 1000, Chopper Circle, Auraria, Denver, Denver County, Colorado, 80204, United States to Denver International Airport, 8500, Peña Boulevard, Denver, Denver County, Colorado, 80249, United States (http://map.project-osrm.org/?z=14&center=39.884615%2C-104.673615&loc=39.748684%2C-105.007544&loc=39.860668%2C-104.685367&hl=en&alt=0&srv=0) This includes private roads and is NOT a legitimate route. Also made a thread about this in the osmus Slack domain (https://osmus.slack.com/archives/C029HV951/p1617747002024900).

The primary question here is: should the private road entrance be designated `access=no` and `emergency=designated`? This will require real world verification about the purpose of the private road.

New house has been built at this location. Address is 365 Bow Mountain Rd, Boulder, CO 80302-9453.

Unable to answer "Who is allowed to park here? Parking may be free or paid." – 218 (Parking Lot) – way/216703154 via StreetComplete 57.3:

Not for parking. No car access

Attached photo(s):
https://westnordost.de/p/211480.jpg

Unable to answer "Is this still here?" – Tam's Shabby Shanty (Nightclub) – node/4957161804 via StreetComplete 57.3:

Apartment building

abbreviated road name alert (multiple)