How are common are rattle snakes in that park?

I have never seen any

not as common as further west in the canyon

We got stuck in between two up at Lyle Cherry Orchard last week 🤤

There there.

There are, but I personally haven't seen any each yime I have came to visit here... I even let my 4 miniature dachshunds run around too... Also just remeber if you are going into high grass or tree line to stomp your feet while u walk, or shuffle, so if there are any, they will be startled off...

I'm sure not to common.a lot of green grass.

I almost always see 2 or 3 when I'm there, but they've never tried to come up to me or attack me they generally try to stay away from people as they see us as the bigger threat, just don't poke them and you'll be fine. This is Oregon after all lol