The Nevada Digital Dirt team has initiated a compilation of published geochronological data for Quaternary deposits in Clark County, NV. We are using the Google Spreadsheet Mapper tool to depict the data. Once we reach critical mass on the number of points from the available published sources, we will share the kml file and request suggestions for correcting any positioning or misattribution. So far, everything is under control with respect to the latter, but the former may need some work.
As you can see, it is a very intuitive way to depict and explore the data. Imagine if it were done for all the rock and dirt dates in the western US...