The cache is not hidden at the posted coordinates
Moo! N48 43.939 W123 56.968
The Cow(ichan) Geo-Art series is hidden in the logging roads off of Stoltz Main. The area can be accessed via Mosaic's Holt Main gate off of Waters Road, following Holt Main for 16.7 km, and then turning off onto Stoltz Main. The Holt Main gate is generally open on weekends and holidays, but may be closed at times due to fire risk or active logging. Check their access website to make sure the gate is open: https://www.mosaicforests.com/access (direct link: Holt Main)
The main roads to the caches are in good shape and can be driven in a 2WD car. Some of the spurs are slightly rougher, but an average car should be able to drive to every cache. Don't take your vehicle anywhere that you aren't comfortable taking it.
This is bear country, and bears have been spotted near several of the caches. Be bear aware and make sure someone knows where you're going.
Even though this area is remote, there's some cell reception in the vicinity of caches 1 to 16 and 29 to 32.
Have fun!