This is an Earthcache, which does not have a physical container, but provides a learning exercise and a chance to show that knowledge in this setting. Please send me the answers to the questions below to validate your log.
Background
Although the cache is not about the lake, it is important to understand a bit about it to understand this phenomenon. Lake Bonneville was the largest Late Pleistocene paleolake in the Great Basin of western North America. It was a pluvial lake that formed between 30,000 and 13,000 years ago in response to an increase in precipitation and a decrease in evaporation as a result of cooler temperatures. The lake covered much of what is now western Utah and at its highest level extended into present-day Idaho and Nevada. At the end of this period, increased evaporation and flooding into lower areas decreased much of the lake's volume.
Specifics
What is a delta? A delta is a landform built of sediment deposited by a river where it meets a body of standing water. In this case, the Logan River met ancient Lake Bonneville, and with its sediment load, constructed the benches of Logan from 25,000 to 15,000 years ago. The bench the temple is built upon marks the “Provo” shoreline, which is prominent across some valleys of northern Utah. This unique position is where the lake shore existed and the Logan River deposited the sediment, thus existing in the delata and also a bench. The "bench" referred to in relation to Lake Bonneville and Logan is the Provo shoreline, a prominent feature of the landscape in northern Utah. It's a result of the ancient lake receding after its maximum level. The Provo bench provides evidence of the ancient lake and its fluctuating levels. The distinctive sediments exposed on the bench, and the slope leading down to the Logan River.
From this site, you can see the drop off from the main bench of the ancient lake to the portion under water, which is the area to the South and the West. This is why this is such a unique spot, with the delta and the lake coming together here. Look around and you can see this specific bench and the drop off.
Logging Requirements
1. What proof at the site do you see of the bench from Lake Bonneville?
2. How much of a drop off do you see from the top of the bench at the site to the next lake level (estimate is good)?
3. Place a photo of you or a geocaching item at the site, without revealing any answers.
Sources: Wikipedia, USU College of Geosciences website,