Definition of Oahe Reservoir
reservoir about 225 miles (362 kilometers) long formed in the Missouri River by the 1959 completion of the Oahe Dam in northern South Dakota
Love words? You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.
Start your free trial today and get unlimited access to America's largest dictionary, with:
- More than 250,000 words that aren't in our free dictionary
- Expanded definitions, etymologies, and usage notes
- Advanced search features
- Ad free!
Seen and Heard
What made you want to look up Oahe Reservoir? Please tell us where you read or heard it (including the quote, if possible).