high speed internet in Arizona

[1StreamDream]

We need to locate an RV resort with monthly rental, where the site can provide dedicated high speed (wired) internet, either cable modem or DSL line. We had our own dedicated cable modem as part of a monthly site rental in TX last Feb, we are looking for similar in a different region of the country. We want to go for a couple months, but one of us needs to work (remotely) from our Airstream, cellular is not good enough as a primary option (but it is part of the backup/contingency plan). I am not having much luck in my resort search in Arizona, for locations that offer what I stated, so I thought I would try this approach. Do any of the forum contributors know of an RV resort that offers dedicated high speed internet (per site) as I describe ? Phoenix is probably our ideal weather situation, Flagstaff too cold. Please share any details if you know of options for this, and thanks in advance.