There is three different grazing leases that people call the Edgerton pasture: Buffalo Park (four different section-managers) Grazing Ass'n, Cresthills grazing Ass'n and Dunn Lake Grazing Ass'n. They are not actually community pastures but grazing leases-not quite the same thing and different rules for access. Go on the public lands grazing lease site and get the contact info. Each grazing lease has a different contact and different rules. Some access points have the contact info as well. The two main leases are walk-in only until November with some routes open for access.
That being said, they do allow walk-in hunting with permission and are patrolled.
Hope this helps.