As a new member I apologize if this has been covered in another thread, but I did not see much in the way of responses about multiple federal agency controlled possible landing sites. (US Fish and Wildlife, Oklahoma Department of Wildlife and Corps of Engineers)
A grand plan for a lake in the middle of the Oklahoma panhandle conceived in 1936 was completed in 1978 but never filled up.

36°39'28.15"N 101° 8'15.12"W

This "lake" (mostly a muddy puddle) borders a wildlife refuge and offers public hunting access and gained my interest after making a site visit to a well boarding the lake. There is even a paved strip.

A spending controversy erupted In 2009, when the Corps wanted to use $1.2 million of economic stimulus money to replace rotting guardrails on each side of the paved road across the top of the Optima Dam used by approximately 15 cars a day.[27] Public criticism caused the Corps to instead gate and padlock the road at a cost of $1000.[28] Per the Corps’ September 2010 Section 216 Initial Appraisal Report on Optima Lake, the Corps continues to spend approximately $160,000/year for annual inspections of dam structures, detailed inspections at 5-year intervals, and repairs as budgets allow.[29] That same report indicates the existing dam structures (gate tower, stilling basin, uncontrolled spillway and outlet works) remain in operational condition.

An thoughts on weather this is even worth checking into would be much appreciated.

Whenever there is a wildlife management area near by they seem to frown on all vehicular operations. Winged or not.