Rock Creek State Park Campground sits approximately 20 minutes east of Marshalltown, Iowa, at an elevation of about 1,000 feet above sea level. Located in Jasper County, the area features gently rolling prairie landscape surrounding a 602-acre artificial lake. Summer temperatures typically range from 65-85°F with moderate humidity, while spring and fall camping seasons offer cooler temperatures and less crowded conditions.
What to do
Fishing opportunities: Rock Creek State Park features excellent fishing conditions throughout most of the year. "We caught so many fish here we had to actually let some loose because we were over our limit. We spent most of the day on the lake but the campgrounds were nice and quiet while we were cooking around the fire," notes one visitor to Rock Creek State Park Campground.
Hiking trails: Ashton Wildwood Park offers several hiking options for all skill levels. "There is a nice little circle hike that's not too difficult and was great for rehab after my knee replacement," shares a camper at Ashton Wildwood Park. The park includes an orienteering course for those looking to practice navigation skills.
Biking routes: The Cedar Valley area provides extensive biking opportunities. "The bike trails are excellent and same for hiking. Clean bathroom with good showers," reports a visitor to George Wyth State Park Campground. Many parks connect to wider trail systems extending through nearby towns.
What campers like
Lakeside spots: Many campers appreciate waterfront sites at various parks near Marshalltown. "Beautiful scenery with lake front camping. Sunset over the lake! Found a great trail to hike, also the opportunity to rent a boat or paddleboard," notes a camper at Rock Creek State Park.
Peaceful atmosphere: Smaller county parks offer quiet alternatives for glamping close to Marshalltown, Iowa. "Very nice state park campground on a lake. Well kept grounds, clean bathrooms no wifi but cell service is available. 20 min from Grinnell," comments a visitor to Rock Creek State Park.
Creek access: Thomas Mitchell County Park provides unique water features. "The outer loop has a creek that flows behind the sites with large stairs to get down to it. Kids were having a blast in the water," explains a camper at Thomas Mitchell County Park. The creek offers refreshing relief during hot summer months.
What you should know
Seasonal considerations: Parks in the Marshalltown area have varying operating seasons. "Our camp host told us early spring can be hit or miss because sometime the campground will end up flooding so keep that in mind when you plan your trip," advises a Rock Creek visitor. Most parks operate from April through October.
Site spacing: Campground layouts vary significantly between parks. "RV sites are close and busy. Grass and shade. Tenting area had a much quieter vibe. Lots of dogs. Ranger was helpful. It was a Sunday," reports another Rock Creek visitor.
Facilities availability: Bathroom and shower conditions differ by location and season. "Campground #1 has very clean, easy to reserve. Bathroom was a pit toilet but clean. Camp spot was clean and well-maintained," notes a camper at Jester County Park.
Tips for camping with families
Playground access: Several parks offer child-friendly amenities. "So quiet and peaceful down by the water. Beautiful scenery, great playground, friendly atmosphere," shares a Jester County Park visitor. Many campgrounds feature recently updated playground equipment.
Water activities: Swimming and splashing options exist throughout the area for glamping opportunities near Marshalltown. "There is a sand beach to swim, where they also rent kayaks & canoes. The campground is located along the Cedar river, for those who want to boat and fish on a river, as well as multiple lakes to fish and a lake to ski," explains a George Wyth State Park camper.
Educational options: Some parks offer learning experiences. "The Nature Center offers education displays and programs. Lake offers paddling, fishing, etc.," notes a visitor to Otter Creek Lake and Park.
Tips from RVers
Hookup availability: RV sites vary in terms of utility connections. "Level sites with full hookups. Plenty of space to walk the dog. Right next to a gas station with great burgers and tenderloins!" reports a visitor to Kellogg RV Park.
Pad conditions: Site surfaces differ across parks. "Our site was pretty level and well maintained," shares a Jester County Park visitor. Most RV areas feature either gravel or concrete pads with varying degrees of leveling.
Seasonal restrictions: Some campgrounds have limited RV access during certain times. "Open year around. Nice large sites and no need to unhook. Clean rv park with easy access to I-80," notes a Kellogg RV Park visitor, making it a reliable option regardless of season.