I'm doing Boston 12 hour. Have done the 6 several times
The loop is 1 mile the hill is tiny maybe 10m length max climbing perhaps a metre or two
I think they only had water in cups and unless some spectators happen to fill the cups it was very much help yourself from the big urn of water so I suggest if you don't have support crew you have lots of your own bottles
Thinking of doing the 50 mile here. Is it a muddy type of run? Is the checkpoint at the start finish area so we can dump out own supplies there?