Topographic Maps

What Is A Topographic Map?

A topographic map accurately represents the natural and man-made features of the land. The shape and elevation of the terrain are portrayed by contour lines, and specific features such as buildings, roads, towns, water areas and vegetation are shown by map symbols and colors.

How Do You Read A Topographic Map?

When you purchase a topographic map you will receive a U.S.G.S. “Information Pamphlet” that includes an explanation of symbols, colors, and area features such as water and vegetation.

For instance, the Information Pamphlet explains that topographic contours are shown in brown by lines of different widths, and the contour interval is printed in the margin of each map. The Crawford Conservation District also sells both the “Coordinator” and “Topo Companion”. Computer engineered for use with U.S.G.S. and E.M.R. Canada topographic maps, these topo map plotters provide three needed functions: 1) measure distance in miles, kilometers and fractions, 2) determine exact latitude/longitude of any known point, and 3) precisely plot known latitude/longitude from the world-wide GPS satellite system data or other reliable sources.

As A Regional Dealer Of U.S.G.S. Maps, What Areas Of Pennsylvania Do We Cover?

The Crawford Conservation District has 7.5 minute series (quadrangle) maps of Crawford County and some areas of surrounding counties, including those of Ohio maps bordering the county. It takes thirty-one quadrangle maps to cover Crawford County. We also stock County Maps of northwest Pennsylvania counties.

What Is The Difference Between 7.5 Minute Series And County Maps?

7.5 Minute Series County Maps
1 : 24,000 1 : 50,000
1 inch = 2,000 feet 1 inch = 4,167 feet

How Much Does A Topographic Map Cost?

The 7.5 minute quadrangles are $8.00 and the County maps sell for $9.00. Other special maps such as the Continental U.S. map, World Map or Explorers Map of the United States may vary in price. Payment in full from a customer is required whether “in stock” maps are purchased or special U.S.G.S. maps are ordered. A nominal service charge for special order maps may be assessed to the purchase price.


For more information contact or call 814-763-5269