| Specimen ID | 297263 |
| Group | Fishes |
| Genus | Micropterus |
| Species | salmoides |
| Common Name | Largemouth Bass |
| State | OR |
| County | Morrow |
| Locality | McCormack Slough, 5 miles northeast of Boardman. Highway 730 to milepost 171.9, turn north on Patterson Ferry Road, go 1.9 miles. Turn west on gravel road (0.1 mi past Umatilla Natl Wildlife Refuge Info Center and parking area). |
| Mapping Accuracy | Accurate |
| HUC8 Name | Middle Columbia-Lake Wallula |
| HUC8 Number | 17070101 |
| HUC10 Name | Upper Lake Umatilla |
| HUC10 Number | 1707010106 |
| HUC12 Name | Lower Paterson Slough-Lake Umatilla |
| HUC12 Number | 170701010603 |
| Map | |
| Collection Year | 2013 |
| Year Accuracy | Publication Year |
| Potential Pathway | stocked for sport |
| Status | established |
| Reference 1 |
| Ref. Number: | 25722 |
| Author: | All-Oregon.com. |
| Date: | 2013 |
| Title: | Oregon Warm Water Fishing Areas With Public Access |
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| Record Type | Literature |
| Freshwater/Marine | Freshwater |
