He expected Frederick to attack him from the west, from Frankfurt, and from the Frankfurt outer city. The Russians constructed redans and flèche to protect all the potentially weak points of their fortifications; they built glacis to cover the most shallow of the hills, and scarps and counterscarps to protect seemingly weak points. Abatis not only littered the hillsides, but dotted flat ground. By 10 August, his scouts had told him that Frederick was at the far western edge of Frankfurt. Accordingly, Saltykov took everything he could from the city by way of sustenance, all oxen, sheep, chickens, produce, wine, beer, in a flurry of ransacking. While Saltykov plundered the city and prepared for Frederick's assault from the west, the Prussians reached Reitwein, some north of Frankfurt on 10 August, and built pontoon bridges during the night. Frederick crossed the Oder in the night and the next morning, and moved southward toward Kunersdorf; the Prussians established a staging area near Göritz (also spelled Gohritz on the old maps), about north-northeast of Kunersdorf late on 11 August with about 50,000 men; of these, 2,000 were deemed unfit for service and stayed behind to guard the baggage. Frederick conducted a perfunctory reconnaissance of his enemy's position, accompanied by a forest ranger and an officer who had previously been stationed in Frankfurt. He also consulted a peasant who, though garrulous, was uninformed about military needs: the peasant told the King that a natural obstacle between the Red Grange (a large farmstead between Kunersdorf and Frankfurt's outer city) and Kunersdorf was unpassable; what the peasant did not know was that the Russians had been there long enough to construct a causeway linking these two sections. Looking to the east through his telescope, Frederick saw some wooded hills, called the Reppen Forest, and he believed he could use them to screen an advance, much like he had done at Leuthen. He did not send scouts to reconnoiter the land or question locals about the ground in the forest. Furthermore, through his glass he could see that the Russians were facing west and north, and their fortifications were stronger on the west. He decided "all" the Allies were facing northwest and that the forest was readily passable. After his perfunctory reconnaissance, Frederick returned to his camp to develop his battle plan.