HENRYS LAKE RANGE

<body topmargin=0 leftmargin=0 marginheight=0 marginwidth=0> <table cellpadding=0 cellspacing=0 border=0><tr> <td valign="top" rowspan="2" width=210 BGCOLOR="#9999FF" TEXT="#080000" bgproperties="fixed" background="04076ba3.gif"> <bR> <div> <B><U>CONTENTS</U></B></div> <bR> <div> <A HREF="Introduction.htm" TARGET="_top" TITLE="Introduction"><U>INTRODUCTION TO THE BOOK</U></A></div> <bR> <div> <A HREF="What's%20Newid128.htm" TARGET="_top" TITLE="Whats New?"><U>WHAT'S NEW?</U></A></div> <bR> <div> <A HREF="Mount%20Borah.htm" TARGET="_top" TITLE="Mount Borah"><U><B>Mount Borah Guide.</B></U></A></div> <bR> <div> <A HREF="Linksid24.htm" TARGET="_top" TITLE="Links"><U>LINKS</U></A></div> <bR> <div> <A HREF="id19.htm" TARGET="_top" TITLE="Favorite Climbs"><U>FAVORITE CLIMBS</U></A></div> <bR> <div> <A HREF="Idaho%20Mountain%20Ranges%20by%20Region.htm" TARGET="_top" TITLE="Idaho Mountain Ranges by Region"><U>MOUNTAIN RANGES BY REGION</U></A></div> <bR> <div>      <A HREF="Northern%20Idaho.htm" TARGET="_top" TITLE="NORTHERN IDAHO"><U>Northern Idaho</U></A></div> <bR> <div>      <A HREF="Western%20Idaho.htm" TARGET="_top" TITLE="Western Idaho"><U>Western Idaho</U></A></div> <bR> <div>      <A HREF="Eastern%20Idaho.htm" TARGET="_top" TITLE="Eastern Idaho"><U>Eastern Idaho</U></A></div> <bR> <div>      <A HREF="Index%20S%20Idaho.htm" TARGET="_top" TITLE="SOUTHERN IDAHO"><U>Southern Idaho</U></A></div> <bR> <DIV ALIGN="LEFT"></DIV> <div> <A HREF="Climbing%20Articles.htm" TARGET="_top" TITLE="Climbing Articles"><U>CLIMBING ARTICLES</U></A></div> <bR> </td> <td valign="top" colspan=2 height=105 BGCOLOR="#99CCFF" TEXT="#080000" bgproperties="fixed" background="04176bc1egdyqn.gif"> <div> <FONT SIZE="5" COLOR="#FFFFCC" FACE="Arial" ><B>Idaho: A Climbing Guide</B></FONT><B>   |   </B><A HREF="index.html" TARGET="_top" TITLE="Idaho: A Climbing Guide"><U><B>home</B></U></A></div> <div> <A HREF="Eastern%20Idaho.htm" TARGET="_top" TITLE="Eastern Idaho"><U>Eastern Idaho</U></A>   |   <A HREF="Beaverhead%20Range.htm" TARGET="_top" TITLE="BEAVERHEAD RANGE"><U>BEAVERHEAD RANGE</U></A>   |   <A HREF="Big%20Hole%20Snake%20River.htm" TARGET="_top" TITLE="BIG HOLE AND SNAKE RIVER MOUNTAINS"><U>BIG HOLE AND SNAKE RIVER MOUNTAINS</U></A>   |   <A HREF="Boulder%20Mts.htm" TARGET="_top" TITLE="BOULDER MOUNTAINS"><U>BOULDER MOUNTAINS</U></A>   |   <A HREF="id73.htm" TARGET="_top" TITLE="CENTENNIAL MOUNTAINS"><U>CENTENNIAL MOUNTAINS</U></A>   |   <B>HENRYS LAKE RANGE</B>   |   <A HREF="id43.htm" TARGET="_top" TITLE="LEMHI RANGE"><U>LEMHI RANGE</U></A>   |   <A HREF="Lost%20River%20Range.htm" TARGET="_top" TITLE="LOST RIVER RANGE"><U>LOST RIVER RANGE</U></A>   |   <A HREF="id22.htm" TARGET="_top" TITLE="PIONEER MOUNTAINS"><U>PIONEER MOUNTAINS</U></A>   |   <A HREF="id42.htm" TARGET="_top" TITLE="WHITE CLOUD PEAKS"><U>WHITE CLOUD PEAKS</U></A>   |   <A HREF="id75.htm" TARGET="_top" TITLE="WHITE KNOB MOUNTAINS"><U>WHITE KNOB MOUNTAINS</U></A></div> <div> </div> </td> </tr><tr> <td valign="top" height=375 colspan=2 BGCOLOR="#99CCFF" TEXT="#080000" bgproperties="fixed" background="04176ba3.gif"> <div> HENRYS LAKE RANGE</div> <div> The Henrys Lake Mountains are a mixture of Paleozoic sedimentary rocks and volcanic materials including rhyolite and basalt with some Precambrian metamorphic rocks thrown in for good measure. The range, which was forced up with the uplifting of the Rocky Mountains, has most recently been shaped by glaciation and the nearby Henrys Fork and Island Park calderas and the collapsed volcanoes that preceded them. One of these volcanoes covered more than 6,000 square miles of Idaho and Montana with red-hot ash and other materials.</div> </td> </tr></table></body>