Yellowstone National Park is reporting an increase in traffic entering the park during August compared with last August. Statistics show more than a 4-1/3% increase in vehicles entering the park this year over the same time last year. However, Spokesman Al Nash explains that a new formula used to calculate the actual number of visitors to the park prevents an accurate comparison of park visits from one year to the next. Nash says it is a challenge for the park to accurately characterize how this year’s visitation compares with last year. Nash says, “Our best comparison is to look at recreational autos and RVs which are entering the park this year and compare that with 2012 levels.” Nash says July was actually considered the peak month for visitation, but August is the next highest followed by June and September.