Home » Videos Finish at Holiday Valley Mudslide Participants go down the slope into the mudpit at Holiday Valley's 1st Mudslide Event. This was the last feature of the fun runs. Video by RaineGirl14 Tagged in Summer Adventure mud run mudslide Ellicottville Login to post comments Email this page Travel Guide It's a full 56-page comprehensive guide, highlighting the activities and attractions in our County and it's FREE!! View the visitor's guide online or request that the Enchanted Mountains guide be snail mailed to you for FREE! Related Events Allegany State Park's Classic Car Cruise In 2019 "Rock the Park" at Allegany State Park "Dog Days of Summer" at Allegany State Park 2019 Family Beach Party at Allegany State Park Allegany State Park Celebrates National Public Lands Day