These markets will rise until either a bunch of new supply starts coming on the market or there is a shift in population trends.Focusing just on cashflow often attracts people to areas where there are other problems.

National Park is the most visited park in all of the US. likely due to the large east coast population, but there's some knock-out views  for 500k  and a decent  2bed 2bath.  

You could also do a walk tour through the facilities any ways to get a feel for the competition.The good thing, if as everyone has noted to you, check zoning; you are closer to the population than all of them. 

For these properties, I’ve calculated the Net Operating Income (NOI) based on 100% occupancy, then subtracted approximately 33% for expenses.Storage 1Unit Number: 105Size of Land: Litter under 1acre, probably not expandablePopulation: about 34K within 3 miles,Population Growth: 2-5% per yearTraffic Count: about 4KRent at 100%: $110KProjected NOI after deducting 33%: $73.7KAsking: $900KOffer price: $730-780K?

I did see a predominantly blue-collar population outside the Lehigh area when I went to visit a few weeks ago.

Look for places with population growth and employment boosts.

Once you've determined your objectives, look for markets preferably close to yours with active job growth, population growth and an economy without too much fluctuation.

There's so many catalysts for population and job growth (Intel, Honda, Amazon, Nationwide Hospital, etc).

Prefer area with population and job growth potential.

I recommend looking into Columbus OH - lots of population growth, job growth, and major companies building out here like Intel, Meta, Google, Amazon, etc.