20,000 years of icework, and its expression on the land

At Juneau, marine sediments dating to 13,000 BP have been found at 750 feet above sea level. Considering world sea level was more than 300 feet lower at that time, this represents more than 1000 feet of land depression under heavy ice.

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In this section

Disco to Ford’s Terror, 1994

All in the timing   In days before accurate tide tables, this place would indeed have gotten your attention. The…

1996 | Richard Carstensen | 10 pages

Bay&Valley day: marine&glacial landforms

Morning: In the morning we visited coastal sites at Aanchg̱altsóow, nexus town (Auke Rec) and K’aan Héenak’u, porpoise little bay…

2022 | Richard Carstensen | Landforms class archives

The Cruise: landforms of T’aaḵú Aaní

On Sunday Sept-11 we motored 53 miles southeast from Áak’w into T’aakú Aaní, exploring landforms from the water. In Avenza,…

2022 | Richard Carstensen | geopdfs for T’aaḵú cruise

Second SEALT-Discovery walk

Traversing the 2014 wetlands conservation parcel On July 16th, about 25 bushwackers assembled in the parking area at end of…

2022 | Richard Carstensen | 11 minute slideshow

First encounters

Áak’w & T’aakú country in 1794 Back in 2010, when first collaborating with Goldbelt Heritage, I began to mine the…

2011 updated 2021 | Richard Carstensen | 36-minute slideshow

Pocket wildlands: forests and ponds of Áak’w Táak

Fifty friends on backloop moraines On a sunny July 17th, 2021, Discovery Southeast and the Southeast Alaska Land Trust hosted…

2021 | Richard Carstensen | 8 minute slideshow

SEALT & Discovery Southeast groupwalk

Touring lands on Back Loop Road Discovery Southeast and the Southeast Alaska Land Trust (SEALT) have similar missions. Discovery works…

L’ux̱, murky water (H-word River)

Journal for my favorite glacial valley A scoping document and collection of journals from 40 years of visits to what…

2020 | Richard Carstensen | 62 pages

Nature near the schools: Landforms

Powerpoint & script for Discovery Nature Studies I didn’t come to geology by natural inclination. I was gently nudged by…

1990 | Richard Carstensen | powerpoint & script

Nature near the schools: Mendenhall River Elementary. 1991

Materials from the Eisenhower Math and Science series In February, 1991, with Gustavus master-naturalist Greg Streveler, Discovery director Cinda Stanek…

1991 | Carstensen, Streveler, Stanek & Merli | workshop materials

Glacial & cultural history of northern Lingít Aaní

A fireside presentation My talk at the Visitor Center in February, 2020 explored the past 20,000 years of glaciation and…

2020 | Richard Carstensen | 27 minutes

Kaxdigoowu Héen (Montana Creek): presentation for SEAL Trust

Slideshow in two parts Kaxdigoowu Héen, going back clearwater has been one of my favorite places since I first explored…

2019 | Richard Carstensen & John Hudson | slide show in 2 parts: 38 & 22 minutes

Sweetheart lake flights

In 2011 and 2012, I helped survey proposed hydro facilities at Sweetheart Lake and estuary, about 40 air-miles south of…

2011&12 | Richard Carstensen | 25 page excerpt

Atlas of biogeographic provinces (draft)

Heart and edge: Biogeographic provinces of Southeast Alaska An atlas-in-progress for the 22 provinces of Lingít and Haida Aaní. This…

2020 (draft) | Richard Carstensen | 26 page excerpt

Discovery’s education and research at The Glacier

Discovery Southeast celebrates 4 decades of research and education at Áak’w Táak, inland from little lake (Mendenhall Valley) glacierdiscovery from…

2017 | Richard Carstensen | 27 minutes

Raven’s-eye views of postglacial succession

Aerial views of post-glacial succession. Combines UAV perspectives with high-res orthophotography plus forest profile views in the LiDAR point cloud.…

2017 | Richard Carstensen | 20 minutes

Southeast glaciers from IfSAR, ArcGIS Online

On receipt of the new DSM (digital surface model) from IfSAR missions at 5-meter pixel resolution, it became possible to…

2018 | Richard Carstensen | 1 page

Sesquicentennial slideshow

For the sesquicentennial year of the 1867 Alaska Purchase, Juneau-Douglas City Museum asked me to create 3 banners showing 150…

2017 | Richard Carstensen | 28 minutes

Herbert Glacier Trail

The Herbert and neighboring Eagle Glaciers advanced and receded synchronously with the much better known Mendenhall. Reaching their termini has…

Mendenhall Glacier by bus & boot leather

A Discovery Guide for the independent traveler who wishes to visit the Mendenhall Glacier by bus and foot. Inspired by…

2009 | Richard Carstensen | 2 pages, 3 MB