Pinnacles National Park, California, USA May 27, 2017
I wasn't able to find a match using the key from Vespinae of North America (https://www.researchgate.net/publication/267944563_The_Vespinae_of_North_America_Vespidae_Hymenoptera_The_Vespinae_of_North_America_Vespidae_Hymenoptera) or using Identification Atlas of the Vespidae (Hymenoptera, Aculeata) of the northeastern Nearctic region (www.cjai.biologicalsurvey.ca/bmc_05/keys.html) .