This letterbox cache is at the posted coordinates. You're looking for a small PB jar with some room for TBs and swag. Please do not remove the stamp from the cache. This area can be busy at times but you are fairly well sheltered from view at GZ.
When looking for a spot to hide a cache in the area, we walked up to these trees thinking, "maybe there's a good spot in these cedars". When we got up close and saw the odd looking cones on the branches, we realized these may not be cedars. Out came the "Seek" app and it identified these trees as "Chinese Arborvitae" aka Platycladus orientalis. This tree is native to northwestern China but has been introduced in various regions of the world in parks, gardens, cemeteries and more. It is resistant to drought and often used as an ornamental tree.
Congrats to melkboer for the FTF!