The military penetration of southern Florida offered the opportunity to map a poorly understood part of the country. As late as 1823, official reports doubted the existence of a large inland lake, until the military met the Seminoles at the Battle of Lake Okeechobee in 1837.[6] To avenge repeated surprise attacks on himself and ammunition stores, Colonel William Harney led an expedition into the Everglades in 1840, to hunt for a chief named Chekika. With Harney were 90 soldiers in 16 canoes. One soldier's account of the trip in the St. Augustine News was the first printed description of the Everglades available to the general public. The anonymous writer described the hunt for Chekika and the terrain they were crossing: "No country that I have ever heard of bears any resemblance to it; it seems like a vast sea filled with grass and green trees, and expressly intended as a retreat for the rascally Indian, from which the white man would never seek to drive them".[7]