What would you consider a kill hill? I ran several hill climbs racking it up to 8000 and it kept on going. There are several secrets to keep them running like old 40’s tech (meth/water) ;)
4000 feet in 12 miles, straight uphill no switch backs. If anyone has been through Needles Ca. headed west they know the hill. It is probably the best summer kill hill on I-40.