Rough Notes of an Exploration for an Inter-Oceanic Canal Route by Way of the Rivers Atrato and San Juan, in New Granada, South America

Rough Notes Of An Exploration For An Inter-Oceanic Canal Route By Way Of The Rivers Atrato And San Juan, In New Granada, South America by John Cresson Trautwine provides an engineer’s account of an 1852 reconnaissance to assess the feasibility of an inter-oceanic canal via the Atrato and San Juan rivers in New Granada. Trautwine describes the practicalities and barriers of navigation along the Atrato, including the nine mouths (bocas), shifting sand bars, mud flats, tidal effects, and the minimal depths available for steamers with modest drafts. The narrative documents hydrographic measurements, river travel by canoe and small boat, and observations on climate, flora, fauna, and interactions with local communities, merchants, and pilots. He weighs alternate routes, evaluates the partition ridge between Atlantic and Pacific waters, and discusses the economic impracticality of a canal across the region, contrasting it with the Panama Railroad. The work combines geography, travelogue, and early canal speculation, contributing a detailed mid-19th-century geographic survey of western Colombia and the era’s engineering debates.