For the wedding and reception - cocktail, please. The ceremony will be on a lawn (so heels may not be ideal) and the reception in a large tent. The ranch is in the mountains and at night in Montana it can be cool so it is always a good idea to bring a sweater or light jacket. For other informal gatherings that we've included on the schedule, we have tried to include information on attire.
There's a saying in Montana that if you don't like the weather, just wait 5 minutes. If it rains, the storm may pass and we may just need to slightly delay the beginning of the festivities. But if it doesn't seem to be a passing storm, don't worry, we have backup plans. The wedding will still be at the 320 Ranch, but the festivities might move to another area of the ranch (indoors).
If your invitation says “and Guest,” then yes, if not, we would prefer if it was just you.