I am building a wall map for our SAR team and the regional SAR group which includes 9 counties in southern Oregon and Northern California. They would like to have a UTM grid on it and while it is primarily in UTM T 10 the eastern portion is in UTM T 11. This creates issues with grid angles and at this point I haven’t found a projection that works with 2 different utm zones on the same map. Any ideas suggestions or ideas? What am I missing??