Chapter 18, Problem 18.1P

To determine

The scale of the USGS 7 1/2- minute quadrangle map

Answer to Problem 18.1P

1:24,000

Explanation of Solution

Given Information:

USGS 7 1/2 - minute quadrangle map

USGS map divides the area into quadrangle map shown by area in the terms of latitudes and longitudes within 2 lines. 7.5 minute shows the area bounded by 7.5-degree latitude and 7.5-degree longitude. Scale of 1:24,000 provides enough details through the quadrangle map.

Most of the natural features and geographical information is shown in the scale of 1:24,000 and these maps are generally used by engineers, architects, city planners, etc. Other maps with larger scale are also available such as 1:50,000 and 1:1,00,000 and these maps are preferred for management activities and land use pattern identification.