Most people probably do not think too often about conducting outings with multiple units outside of district events because the majority of units out there are big enough to support their outings but for troops in semi-rural to rural areas joint outings are sometimes the only way to accomplish really exciting and different outings. These outings do not include district events like freezerees, klondikes, camporees, or resident camps they are outings that fall outside of the regular district program calender.
On the kenai Peninsula in Alaska this type of outing is what allows Kenai Peninsula Scout units to have a full camping schedule for the year.
Yes this is definitely not in the scoutmaster handbook and is definitely not the norm for scout units but think about it and give it a try, what harm could it do. If nothing else the scouts will find out about how other troops function without having to contend with a competition weekend.
Yours in Scouting Service
Junior Assistant Scoutmaster
Great Alaska COuncil
Eagle Scout OA Brotherhood Member
NSJ '05 WSJ '07 Philmont AA '08