: Today, you no longer need a CD drive. You can download georeferenced files for Clinton County for free via tools like USGS topoView .
: These CD-ROM collections were often "GPS ready," meaning early hikers could connect their handheld devices to a PC and upload trail coordinates directly from the Clinton County topographic data. 3. The Digital Archive Shift clinton county iowa usgs topographic maps on cds
In the mid-1990s, the USGS began creating —scanned, georeferenced versions of their famous paper topographic maps. These digital files included all the original map "collar" information, such as legend data and scale bars. For a place like Clinton County, these CDs allowed users to see historical 1953 or 1967 quadrangles on their early home computers for the first time. 2. Commercial "Topo!" Software : Today, you no longer need a CD drive
Third-party companies like popularized the use of these maps on CDs through products like the TOPO! Seamless USGS Topographic Maps series. For a place like Clinton County, these CDs