If they have only "adopted" it and do not own it, the the actual owner of the land could give you permission to herp there. If the land is state owned, and it is not a national forest, you should be able to collect there. But, check with your state regs if it is owned by the state.
Here in KY, you can collect on any state land that is open to hunting, as long as you follow the guidelines. The only exception is the national forests that you cannot hunt on. All wildlife is protected in those areas, and collecting is a big no-no. This includes plants as well as animals!
Brian
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RATS
1.0 Corn snake "Warpath"(KY locale)
1.0 Black rat snake "Havok" (KY locale)
1.1 Black rat snakes "Reaper and Mystique" (MO locale)
1.0 Albino Black rat snake "Malakai" (Dwight Good stock)
1.0 Everglades rat snake "Deadpool" (Dwight Good stock)
0.1 Greenish rat snake "Rogue" (Dwight Good stock)
1.0 Great plains rat snake "Reign Fire" (TX locale)
1.0 Grey rat snake "Punisher" (White oak phase)(Dwight Good stock)
RACERS
1.0 Eastern Yellow Belly racer "Nightcrawler" (MO locale)
KINGS
1.1 California king snake "Bandit" & "Moonstar" (Coastal phase)
1.1 Prairie king snakes "Bishop" & "Askani" (KY locale)
0.1 Black king snake "Domino" (KY locale)
1.1 Desert Kingsnakes "Gambit" & "Psylocke"
0.1 Florida Kingsnake "Shard"
0.1 Speckled Kingsnake "Haven"
MILKS
1.0 Eastern/red Milk intergrade "Cable" (KY locale)
1.0 Eastern/Red Milk intergrade "Omega Red" (KY locale)
BULLS/GOPHERS/PINES
0.1 Sonoran Gopher "Husk"
1.0 Kankakee bull (Phil Peak stock)
Good luck and Happy Herping
Brian