Juneau Nature

Natural & cultural history of Juneau & Southeast Alaska

Juneau Nature - Natural & cultural history of Juneau & Southeast Alaska

Auke4 additional

These maps and photos were created or acquired during scoping phases for the CBJ Natural History Project.

Panorama of Hill 560 (“Peterson Hill”) above Auke Lake Trail, taken from the ice on mid-lake. There’s confusion about these hill names. On USGS maps, “Pederson Hill” is on Mendenhall Peninsula south of Glacier Highway. But many refer to Hill 560 as “Peterson Hill.” (eg JWP, 2009). • Right: Watersheds (black outlines) and land ownership.

Watersheds (black outlines) and land ownership.

Bedrock geologic context, from draft GIS database by Sue Karl, USGS, Anchorage. Codes are explained in following sidebar. Study watershed outlined in bold. • Below: More detailed bedrock geology, from Ford & Brew, 1973.

Study watershed outlined in bold.
Cretaceous aged volcanics and sedimentaries near the coast:
KJgv -Volcanic rocks of the Gravina belt, Cretaceous & Jurassic
KJg -Sedimentary & volcanic rocks of the Gravina belt, undivided, Cretaceous & Jurassic
KJgs -Sedimentary rocks of the Gravina belt, Cretaceous & JurassicEarlier, more strongly metamorphosed rocks farther inland:
Trclt -Carbonaceous slate, phyllite, & limestone, Triassic
Pzsqm -Siliceous metasedimentary rocks & marble, Paleozoic
MzPzhs -Hornblende schist & gneiss, Mesozoic & Paleozoic
Recent surficial materials:Qa -Quaternary surficial deposits 

 

Relationship of historic mining claims to bedrock type, as mapped in the latest USGS layer (Karl 2004). Old cabins, mines, prospects and trails traced from Knopf 1912. Existing trails and primary roads also shown for comparison. Numbered cabins and claims: 1 At today’s intersection of Glacier Highway with UAS entry road. 2 Today’s Anderson Building (on left of Shorezone photo, below) 3 Today’s Fisherman’s Bend dock site 4 Large condo complex 5 Between Waydelich and Auk Nu estuaries 6 1000 feet north of UAS housing road. This is the Dull & Stephens Prospect, described below under human history. 7 In bogs along today’s Spaulding Trail. This is the Treasury Hill Claims, described below under human history. 8 This claim is mapped but not described in Knopf. Possibly belonged to John Peterson. 9 Prairie Prospect, John A. Peterson. See my notes on these claims in jensen-scoping.pdf. 10 West bank of Mendenhall River, on unnamed creek just south of Montana. No road or trail mapped in Knopf - had to be accessed by boat on high tide. 11 On today’s trap range. 12 Only 1000 feet from the ice at the time of Knopf’s report. Today it’s 2,300 feet from the lake, at 400 feet elevation. This is the Mendenhall Group of claims, described in my document for the Montana Creek Trail (montana-scoping.pdf). Numbers 1 through 5 are also labeled on the Shorezone photos at right.

Relationship of historic mining claims to bedrock type. Old cabins, mines, prospects and trails traced from Knopf 1912. Existing trails & primary roads also shown for comparison.
Numbered cabins and claims:
1) At today’s intersection of Glacier Highway with UAS entry road
2) Today’s Anderson Building
3) Today’s Fisherman’s Bend dock site
4) Large condo complex
5) Between Waydelich and Auk Nu estuaries
6) 1000 feet north of UAS housing road. Dull & Stephens Prospect
7) In bogs along today’s Spaulding Trail. Treasury Hill Claims
8) Mapped but not described in Knopf
9) Prairie Prospect, John A. Peterson
10) West bank Mendenhall River. No road or trail in Knopf -had to be accessed by boat on high tide.
11) Today’s trap range.
12) Only 1000 feet from ice in 1910. Mendenhall Group of claims