Planning on hiking SOBO from Caldonia St. Park (PA) to Harpers Ferry...can anyone tell me what the uphill climbs are like, if there is anywhere to resupply (stores/outfitters/etc.) in maryland close to the trail (want to carry as little food/weight as possible), do you need to hang your food overnight--if so, are there bear cables, and what are the water supplies like? I want my group to be REALLY prepared, as we have some new hikers going & I haven't hiked this part of the trail. We are planning to hike about 10 miles a day. Any info would greatly be appreciated.