Taylor, with his accustomed energy and enthusiasm, had collected and organized a force, primarily for the defence of the La Fourche country and the Teche, ultimately for the offensive operations already planned. Butler at once committed to Weitzel the preparations for dislodging Taylor and occupying La Fourche. This object was important, not only to secure the defence of New Orleans, but because the territory to be occupied comprised or controlled the fertile region between the Mississippi and the Atchafalaya. The country lies low and flat, and is intersected by numerous navigable bayous, with but narrow roadways along their banks and elsewhere none. Without naval assistance, the operation would have been difficult, if not impossible; and the navy had in Louisiana no gunboats of a draught light enough for the service. With the funds of the army Butler caused four light gunboats, the _Estrella, Calhoun, Kinsman,_ and _Diana,_ to be quietly built and equipped, the navy furnishing the officers and the crews. Under Commander McKean Buchanan they were then sent by the gulf to Berwick Bay. When he was ready, Weitzel took transports, under convoy of the _Kineo, Sciota, Katahdin,_ and _Itasca_, landed below Donaldsonville, entered the town, and on the 27th of October moved on Thibodeaux, the heart of the district. At Georgia Landing, about two miles above Labadieville, he encountered the Confederates under Mouton, consisting of the 18th and 33d Louisiana, the Crescent and Terre Bonne regiments, with Ralston's and Semmes's batteries and the 2d Louisiana cavalry, in all reported by Mouton as 1,392 strong. They had taken up a defensive position on both sides of the bayou. Along these bayous the standing room is for the most part narrow; and as the land, although low, is in general heavily wooded and crossed by many ditches of considerable depth, the country affords defensive positions at once stronger and more numerous than are to be found in most flat regions. Small bodies of troops, familiar with the topography, have also this further advantage, that there are few points from which their position and numbers can be easily made out. After a short but spirited engagement Mouton's force was compelled to retreat. Weitzel pursued for about four miles.