Yet, another newly discovered sub-species of bison has been discovered around in and around Ramona. Scientists have named this sub species Bison bison tubus rura. They primarily like to congregate away from people on trails and such.
Bison History: https://en.wikipedia.org/wiki/American_bison
Geo-bison History: These containers were originally created by a company named Bison Designs. The company originally made aluminum carabiners in multiple shapes, including dog bones, mouse ears and more. Seeking out new things to create out of aluminum, the need for a small, waterproof container to carry medicine in arose—and thus, the Bison Tube was born.
Note: You should not have to climb any fences or walls and for the most part easily get caches near road or a short walk.