Yeah, listen to Bill: Idaho is intense. Grab the Great Falls sectional from AVSIM:
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Category: Navigation and ATC - Navigation[/FONT] </td> </tr> <tr> <td align="left" width="*"> [FONT=verdana, sans-serif]
High Resolution Great Falls Sectional Chart [/FONT]</td> <td align="right" nowrap="nowrap"> <!--

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File Description:
Very high resolution georeferenced Sectional Chart. Converted to JPG format to reduce size of download. However, very little compression artifacts are visible to keep high image quality. Includes projection files if you want to use with GIS software. [/FONT]
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Filename:[/FONT]</td> <td width="75%">[FONT=verdana, sans-serif]
sc_greatfalls.zip[/FONT]</td> </tr> <tr> <td width="25%">[FONT=verdana, sans-serif]
License:[/FONT]</td> <td width="75%">[FONT=verdana, sans-serif]
Freeware[/FONT]</td> </tr> <tr> <td width="25%">[FONT=verdana, sans-serif]
Added:[/FONT]</td> <td width="75%">[FONT=verdana, sans-serif]
17th January 2004[/FONT]</td> </tr> <tr> <td width="25%">[FONT=verdana, sans-serif]
Downloads:[/FONT]</td> <td width="75%">[FONT=verdana, sans-serif]
1480[/FONT]</td> </tr> <tr> <td width="25%">[FONT=verdana, sans-serif]
Author:[/FONT]</td> <td width="75%">[FONT=verdana, sans-serif]
Matt Fox[/FONT]</td> </tr> <tr> <td width="25%">[FONT=verdana, sans-serif]
Size:[/FONT]</td> <td width="75%">[FONT=verdana, sans-serif]
10330kb[/FONT]</td></tr></tbody></table>
And then start at Missoula International (KMSO). (Ok, technically that's in Montana.) Follow the Bitter Root Range or the Clark Fork river NW to Lake Pend Oreille. Park your plane at Sandpoint (KSZT) and when you're ready for more fly south to Coeur d'Alene (KCOE).