BAL 0 COUNTY 0 I IISTORY TRAI I,S Agriculture Building • 9811 Van Buren Lane • Cockeysville, MD 21030
Editors: ISSN 0889-6186 JOHN W. McGRAIN and WILLIAM HOLLIFIELD VOL. 34 2001 NOS. 3 & 4
—Peale Museum, Baltimore "Worthington's Mill on Gwynns Falls" painted by C. Maynadier about 1850 depicts what is possibly Holly Mill on Lot 4.
CALVERTON MILLS Three Mile Mill Race where the water impounded a short distance upstream of Windsor Mill Road wended its way, By John McGrain corkscrewing along at a constant level along the contours of the hillsides of the stream valley to reach the uppermost of the The Calverton Mills were one of the most ambitious mills, without any loss of altitude to start the grinding process. schemes of Baltimore's age of limitless confidence. Five great The project made use of the plentiful water and descend- merchant flour mills were built in one string along Gwynns ing elevations along the geographic Fall Line, but such loca- Falls, each successive mill using the water that had passed tions meant rocky terrain, and the builders had to route their through the water wheels of the one upstream, each mill water system through stony places, digging, burrowing, and located on a plane higher than its downstream neighbor, the blasting with black powder. John Davis (1770-1864), self- entire works powered by an engineering marvel called the