Does anyone have any good resources they can share for how to value undeveloped land for camping or recreational use?

By providing unique attractions and recreational opportunities, parks can significantly enhance the surrounding real estate market.

It may not include marketing an area, like a resort or answering the phone, bookkeeping or admin tasks, but dealing directly with any unit is an RE issue.In vacation rentals, such as in a condo development or recreational development where the owners employ managers can be exempt as they don't act as agents but employees under one operation.

There are onsite recreational facilities.The use of the accelerated depreciation strategy helps real estate investors to reduce the tax liability immediately which therefore increases their bottom line due to the offsetting of income.

“Superstar Cities” like San Francisco, Boston, Manhattan and western Los Angeles—places adapted to business and recreation for the elite and those who work for them.Growth of “Cities of Aspiration”.

On page 117 of Brandon Turner's "The Book on Rental Property Investing" he has a chart to calculate capex and I did my best to recreate this with more accurate prices (in the book he only budgets $5000 to replace a roof).

I am willing to accept the recreation risk in case of a burn down. 

Some areas are very dependent upon recreation and have large swings with the overall economy.Since 2010 many companies have had slow but positive growth.

Beyond that, most self storage only being 8 1/2 foot tall or so wide, a 10 x 30 or 10 x 40 storage unit can't handle RV's and boats.Recreation areas/cheaper land:  The way you beat your competition is to build closer to the Recreation areas or on routes to them, from the populations.

Our area has always been a high demand area as we have lakes, rivers, water falls, mountains, trails, fishing, boating, and ALL types of sports and recreation.