Marshall County Conservation Board

05/12/2026

FUN FACT: The record white crappie for the State of Iowa was caught at Green Castle Recreation Area on May 3, 1981. The white crappie weighed in at 4.56 lbs. 45 years later and this record still stands. The record-breaking fish is mounted and displayed in the reception area at the Grimes Farm and Conservation Center. Ted Trowbridge served on the Marshall County Conservation Board from 1979-1985.

05/09/2026

This should not have to be stated but under no circumstances should any individual enter the bison enclosure!

The herd at Green Castle Recreation Area just got a little bigger! 🦬 Take a trip out to Green Castle to visit our two new baby bison and enjoy some time at the park this spring. ☀️

05/08/2026

Our new Marshall County Conservation brochure is here! Stop by to pick one up and start planning your next outdoor adventure. 🥾🌱 A huge thank you to Central Iowa Tourism for providing grant funding to help make this project possible!

05/07/2026

Spring is in full swing at Marshall County Conservation areas! 🌷🌱Here’s a look at some of the public programming happening in the parks from prairie burns to sunrise hikes and everything in between! ☀️

05/04/2026

May the 4th be with you!

If you see wildlife babies on their own, leave them be, you must. This is the way.

📍 Endor/White Pine Hollow State Preserve

May the Fourth be with you! 🌠

05/01/2026

BREAKING NEWS! The trails at Grammer Grove are now open to equestrians, there are a couple of spots that have standing water, please AVOID the standing water and DO NOT ride through it. These areas of south of the old campsite.

05/01/2026

04/25/2026

Thanks Harrison County. Something to think about when you are planting your gardens

What you plant this spring may determine what birds you have visiting this winter. These natives (along with native sunflowers, not just domestic) produce tons of seeds to get your birds through tough Iowa winters. Insects burrow into goldenrod to make galls that produce larva that feeds small woodpeckers like the downy. When planting, think of all the seasons your plants can benefit wildlife!