The UCSC Genome Browser

You can control the density of the tracks displayed on your browser map in two ways:

• Right-click on a track to open a pop-up menu that will allow you to change the density of the display, configure the track, or (in some cases) take you to the detail view for that track

• Scroll down the page to the menu areas that allow you to turn on, off or change the density of the tracks

Select your tracks to add choosing your density of display, and hit the refresh button...

and your tracks will show up in the browser view.

Notes about track density:

• Sometimes you only have the option of show or hide.  When this is the case, first show the tracks, then right-click on tracks in the browser itself to extend your density view options
• Depending on which genome build you choose, not all options seen on this guide will be available. As more annotations are added, more options will show up.
• Here are the differences between dense, squish, pack and full:

If you have added or edited tracks past the point where the browser is easy to view, and you wish to return to the default tracks and start again, or even hide all of the tracks and only show a few of interest to you, there are buttons for this located between the browser map and the display menus.