780 acre area- 2/3 upland and grasses and 1/3 marsh and open water lake. ***MUCH of this is in STORY county.

Starting in Rhodes (SW Marshall County) intersection of S52 and E63 travel WEST on E63 ~ 2.6 miles to 740th Ave (may say Arney Ave). This is the county line between Marshall and Story Counties. Turn right (NORTH) onto 740th Ave/Arney Ave. and proceed .4 miles to the parking lot on the left (WEST). Marsh can be viewed on BOTH sides of the road. Keep in mind that the parking lot is in Story county. Everything on the EAST side of the road is Marshall County and everything on the WEST side of the road is Story County.

Marshall County areas is mostly marsh and lake. Shorebirds can be good if water is low. Ducks, herons, swallow, and pied-bill grebes. This is a public hunting area.

Hendrickson Marsh is an 851-acre area, mostly uplands, and of course the water body itself, when full, of about 250 surface acres. It is shallow water, but still, it is an attractive element for all kinds of migrating birds each spring and fall. In the meantime, lots of fur-bearing animals call Hendrickson home including beaver, muskrats, mink, raccoons, weasels, skunks, and lots of small rodents. Native reptiles and amphibians add to the wildlife mix. There are many resident waterfowl, wood ducks, and others that nest in the grasses of the uplands. Its watershed that provides water is about 8,000 acres.