@Robert. You can get access to the Nolan, above Whitney by walking in at the Tx933 Blum bridge. As you mention, you can also come UP the Nolan from the Brazos, usually launching a Kimball Bend or Plowman Creek park (I think).
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David
Ft. Worth Cabela's FlyShop Outfitter
Trout Unlimited Life Time Member
Lake O.H. Ivie Fly Fishing Body of Water Record Holder for Blue Catfish (2.21) and Largemouth Bass (1.62)