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Grannis Creek is stocked weekly April through October with catchable 10-12 inch brook and rainbow trout and also provides opportunities for wild brown trout. Sampling data from 2010 for Grannis Creek showed 346 French Creek strain brown trout per mile with fish up to 15 inches collected. This is not an estimated population and actual trout numbers will be higher. Bank access is easy with a small paved area for universal access at the upstream parking lot. Please be aware that part of the stream is on private property and only angling is permitted.(2012)
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The vast majority of Iowa’s streams, rivers and lakes offer safe and high-quality fish that pose little or no threat to human health if consumed. Some limitations may apply for young children and pregnant women. Here’s a Fish Consumption Fact Sheet from the Iowa DNR and the Iowa Dept. of Public Health for more information. Here is a list of current fish consumption advisories for Iowa lakes and rivers.