We stayed for three days and two nights. The purpose of this trip was to go to Lakemont Amusement Park and to an Altoona Curve ball game. The campground is small, well maintained and with good customer service. The bathrooms and showers were spotless. There are no activities (pool/playground) for kids, but we had a great time and definitely will be staying here again. If you are looking for a no-frills, safe and clean campground in the Altoona area, this is the place for you.
Being a young family with three kids under the age of 12, this is a great campground relatively close to Pittsburgh. The lake is well stocked, swimming is at the beach area of the lake, and the camp sights are level, clean, and with a newer picnic table and fire ring. We tent camp and have stayed at Keystone several times. The camp seems very safe with the park rangers patrolling both day and night. I would definitely recommend Keystone for families with kids who may be just starting out with the camping idea.
This was the first tent camping trip for my family that was not in a state park. We were very impressed with this campground. The owners were very accommodating for my family, as we had an issue at arrival that was quickly resolved. The fishing was great, the lakes are well stocked and the family activities carried on throughout the weekend. I can't comment on big-rig camping or the like as we used a tent, but my family will be back to this campground in the future.